Cisco CS-SHARE-K9 (Cisco Webex Share) Full Official Technical Specification Document

1. Product Overview

Official Full Designation

Cisco CS-SHARE-K9, officially namedCisco Webex Share, is a compact wireless HDMI content sharing adapter designed for huddle rooms, small meeting spaces, and any standard HDMI display screen. It delivers cable-free local presentation sharing and seamlessly integrates with the Cisco Webex collaboration ecosystem, enabling unified wireless content casting from laptops, tablets, and mobile devices without physical video cables.

Core Definition: A plug-and-play compact collaboration accessory that converts any HDMI-capable monitor, TV, or display into a native Webex wireless presentation system. It leverages ultrasonic proximity pairing and Wi-Fi connectivity to support local room content sharing, plus remote participant content display during active Webex Meetings or Webex Teams calls. It complements Cisco Webex Room Kits, Desk Pro, DX series video endpoints, and standalone third-party displays to standardize wireless presentation workflows across all corporate meeting spacesCisco.

SKU Naming Breakdown

1. CS: Collaboration System product line prefix for Cisco Webex room collaboration peripherals and endpoints
2. SHARE: Functional identifier representing wireless content sharing capability (Webex Share adapter hardware platform)
3. K9: Cisco secure firmware classification suffix, indicating native AES SRTP media encryption for all presentation streaming traffic, compliant with enterprise, government, healthcare, and financial regulated data security standards. No cellular RF modules are integrated into the hardware, so no NR radio-restricted variant exists.

Product Lifecycle Notice

• Official Global Release Date: 2021
• End-of-Sale (EoS) Announcement Date: July 12, 2024; Cisco permanently ceased manufacturing and new unit shipments of CS-SHARE-K9
• End of Software Maintenance: No new feature firmware releases post-EoS; limited critical security patch support concluded in Q1 2025
• Final End-of-Support (EoSS) Date: July 12, 2027
• Legacy Status: Official datasheets, deployment guides, and firmware archives remain available on Cisco’s legacy collaboration documentation portal; post-EoS, Cisco TAC only provides limited best-effort technical support for existing deployed units.

Standard Factory Complete Bundle Contents

Each factory-sealed CS-SHARE-K9 retail package contains all hardware and accessories required for out-of-box deployment:

1. CS-SHARE-K9 core Webex Share compact triangular adapter unit with integrated HDMI plug and attached USB-C power cable
2. Universal multi-region AC power adapter (100–240V AC input, 50/60Hz) with interchangeable regional wall plug heads (North America, EU, UK, Australia)
3. Quick start hardware installation guide and Webex app pairing setup pamphlet
4. Global regulatory compliance, safety, and electromagnetic interference (EMI) certification documentation packet

Supported Software & Enterprise Deployment Architectures

Compatible Client Software

CS-SHARE-K9 exclusively pairs with official Cisco client applications for wireless sharing:

• Cisco Webex Meetings desktop/mobile app (Windows, macOS, iOS, Android)
• Cisco Webex Teams desktop/mobile app (Windows, macOS, iOS, Android)
• Cisco Intelligent Proximity service (built into Webex clients for ultrasonic automatic room device pairing)

Supported Deployment Architectures

1. Standalone Display Deployment Direct connection to any consumer or commercial HDMI display without Cisco video conferencing codecs; ideal for small huddle rooms, breakout spaces, training rooms, and temporary meeting zones. Connects to the corporate enterprise wired or wireless LAN for Webex cloud registration and remote content streaming.
2. Cisco Webex Endpoint Integrated Deployment Paired alongside Cisco Webex Room Kit, Room Kit Plus, Desk Pro, DX70/DX80 video endpoints to standardize unified wireless presentation experience across all enterprise collaboration rooms. Shares the same corporate VLAN, CUCM/VCS/Webex Control Hub management infrastructure as primary video room hardware.
3. Cloud-Managed Enterprise Deployment Fully provisioned, monitored, and managed via Cisco Webex Control Hub cloud collaboration management platform; supports bulk device registration, remote firmware upgrades, centralized security policy enforcement, real-time device health status monitoring, and usage reporting for IT administrators.

Core Integrated Functional Capabilities: Wi-Fi 802.11ac dual-band wireless networking, ultrasonic proximity automatic device pairing, local room wireless presentation casting up to 1080p Full HD resolution, remote Webex meeting participant content mirroring to local room displays, AES-128 encrypted presentation media streaming, Webex Control Hub cloud remote management, compatibility with all Cisco Webex collaboration endpoints, plug-and-play HDMI display connection, and universal cross-platform device sharing support.

2. Video & Content Sharing Processing Specifications

Core Content Streaming & Video Processing Specifications

• Supported Video Output Resolution: Maximum 1920 × 1080 Full HD (1080p) at 30fps; downscales automatically to match native display HDMI resolution
• Supported Content Input Sources: Wireless screen mirroring from Windows/macOS laptops, iOS/Android smartphones and tablets via Webex Meetings/Webex Teams client applications
• Wireless Networking Standards: IEEE 802.11 a/b/g/n/ac dual-band 2.4GHz and 5GHz Wi-Fi; supports WPA2-PSK, WPA2-Enterprise (802.1X) enterprise wireless security protocols
• Maximum Concurrent Sharing Sessions: Single active presentation stream output to the connected HDMI display at one time; supports user switching between multiple paired client devices
• Content Streaming Compression: H.264 AVC real-time video encoding for wireless presentation streams, optimized for low-latency local room content sharing
• Key Presentation Features: Real-time slide annotation pass-through from client devices, full-screen application/window mirroring, audio embedded presentation playback (system audio from client devices output to connected display speakers via HDMI audio channel)

HDMI Hardware I/O Interface Specifications

1. Video/Audio Output Port
   • 1 × Integrated male HDMI 1.4 plug (directly inserts into display HDMI input)
   • Simultaneous digital video and 2-channel stereo digital audio output over single HDMI cable
2. Power Input Port
   • Integrated attached USB-C cable for DC power delivery via included universal AC power adapter; no separate detachable USB-C cable required

3. Audio Processing Specifications

Built-In Audio DSP Features

1. HDMI Digital Audio Passthrough: Transmits stereo system audio from the sharing client device directly to the connected display’s built-in speakers or external HDMI-attached sound system
2. Audio Synchronization Tuning: Built-in lip-sync audio delay compensation to eliminate presentation video and audio desynchronization during wireless streaming
3. Volume Control Routing: Audio output volume adjustable via the source mobile/laptop Webex client application; no physical volume controls on the CS-SHARE-K9 hardware unit

Supported Audio Codecs

• Stereo presentation audio: AAC-LC compressed audio streaming over Wi-Fi between client devices and the CS-SHARE-K9 adapter
• HDMI output uncompressed digital stereo PCM audio for playback on connected display audio hardware

4. Hardware Interfaces, Network Security & Power Specifications

Full Hardware Physical Interfaces

1. Wireless Network: Internal dual-band Wi-Fi antenna (no external antenna connectors); supports enterprise 802.1X authenticated wireless LAN access
2. Video/Audio I/O: Integrated fixed HDMI 1.4 male output plug for display connection
3. Power Interface: Permanently attached integrated USB-C cable for DC power input from the bundled AC power adapter
4. Control & Maintenance Interfaces
   • Embedded ultrasonic audio transducer for Intelligent Proximity automatic device pairing with Webex client apps
   • Remote cloud management via Webex Control Hub (over enterprise Wi-Fi LAN)
   • Over-the-Air (OTA) remote firmware upgrade capability via Webex cloud
   • Physical factory reset recessed pinhole on the adapter chassis to restore full default factory configuration
5. Security Locking: Integrated small Kensington security lock slot on the triangular chassis for physical anti-theft mounting in shared conference rooms

Network & Media Security Compliance Standards

1. Dual-stack IPv4 / IPv6 network protocol support; static IP addressing or DHCP automatic IP assignment via enterprise corporate LAN/Wi-Fi networks
2. Enterprise Network Access Security: IEEE 802.1X EAP-TLS/EAP-PEAP wireless authentication for corporate secure Wi-Fi networks; supports enterprise internal CA digital certificate deployment via Webex Control Hub
3. End-to-End Presentation Media Encryption: H.235v3 compliant AES 128-bit SRTP encryption for all wireless presentation video and audio streaming traffic between client devices and the CS-SHARE-K9 adapter; prevents unauthorized interception of confidential presentation content over Wi-Fi networks
4. Remote Management Security Protocols: Encrypted HTTPS TLS 1.2 cloud communication with Webex Control Hub; SSH secure remote CLI access for advanced on-premises IT troubleshooting; role-based granular administrative access control policies in cloud management portal
5. Digital Identity Certificate Support: Manufacturer-Installed Certificates (MIC), Locally Significant Certificates (LSC), and X.509 DER/Base64 digital identity certificates for secure enterprise network registration and encrypted cloud management communication
6. QoS Traffic Prioritization Compliance: IEEE 802.1Q VLAN tagging to segregate collaboration presentation media traffic from general enterprise office data traffic; IEEE 802.1p Layer 2 CoS marking to prioritize low-latency presentation streaming over standard background network traffic, minimizing wireless presentation lag and frame drop artifacts.

Power Supply Specifications

1. Included Universal AC Power Adapter Unit
   • Input Voltage Range: 100–240V AC, 50/60Hz global universal mains input for worldwide enterprise office deployment across all regional power grid standards
   • DC Output: 5V DC, 2A constant power delivery via integrated USB-C cable to the CS-SHARE-K9 adapter chassis
2. Device Power Consumption Metrics
   • Standby idle power consumption (no active presentation stream, powered on and connected to Wi-Fi): 3.2W
   • Average active presentation streaming power consumption (1080p content mirroring): 4.8W
   • Maximum full-load peak power consumption (simultaneous full HD video presentation streaming + ultrasonic proximity pairing detection active): 5.5W

Environmental Operating & Physical Dimensions / Weight Specifications

Environmental Operating Specifications

• Operating ambient temperature range: 0°C to 40°C (32°F to 104°F) standard office indoor operating temperature
• Operating relative humidity: 10% to 90% non-condensing humidity for continuous 24/7 conference room operation
• Storage & transport temperature range: -20°C to 60°C (-4°F to 140°F); storage relative humidity 10%–90% non-condensing humidity for warehouse inventory storage and inter-region equipment transportation
• Ambient operating noise level: Fully solid-state fanless compact chassis design with zero audible operational noise; suitable for quiet executive meeting rooms, training spaces, and huddle rooms without disruptive hardware fan noise

Physical Dimensions & Weight

• Chassis Overall External Dimensions (Width × Height × Depth): 112 mm × 95 mm × 32 mm (4.41 in × 3.74 in × 1.26 in) compact triangular plastic housing
• Bare CS-SHARE-K9 adapter unit net weight (excluding power adapter and cables): 110 g (0.24 lb)
• Complete full retail bundle gross shipping weight (adapter + universal AC power adapter + regional plug heads + printed documentation + retail packaging): 380 g (0.84 lb)

5. Enterprise Meeting Collaboration & Automation Feature Set

Core Wireless Presentation & Webex Call Feature Set

1. Supported Sharing Modes
   • Local standalone room presentation sharing: Cast content to the room display without active Webex video calls for in-person team meetings, training sessions, and slide reviews
   • Remote participant content mirroring during Webex Meetings/Webex Teams video calls: Stream presentation content shared by remote off-site meeting attendees directly to the local physical room HDMI display for all in-person participants to view simultaneously
2. Complete Pairing & Content Control Operations
   • Ultrasonic Intelligent Proximity automatic pairing: Webex client apps detect ultrasonic audio signals broadcast by the CS-SHARE-K9 unit; one-tap wireless pairing and instant presentation sharing without manual Wi-Fi device connection setup
   • Manual Wi-Fi pairing fallback option: Users can manually connect laptops/mobile devices to the same corporate Wi-Fi network as the CS-SHARE-K9 adapter and select the room share device directly within the Webex client app
   • Active presentation controls: Start/stop screen mirroring, switch between multiple connected source devices, enable/disable embedded presentation audio output, adjust mirrored display resolution scaling directly from the Webex client application
3. Directory & Device Management Capabilities
   • Centralized global device inventory management via Webex Control Hub cloud portal: IT administrators can view all deployed CS-SHARE-K9 units across every corporate office location, track online/offline device status, review historical presentation usage logs for audit reporting
   • Bulk mass remote firmware upgrades: Schedule automatic off-hours OTA firmware updates for hundreds of deployed CS-SHARE-K9 adapters simultaneously to maintain uniform security patch and feature version levels across the enterprise collaboration fleet
   • Centralized uniform security policy enforcement: Deploy standardized Wi-Fi authentication, media encryption, network VLAN QoS, and device access control rules to all CS-SHARE-K9 hardware units via cloud management platform

Intelligent Meeting Workflow Automation Functions

1. OBTP (One Button To Push) Scheduled Meeting Content Sync: When a Webex meeting is scheduled via Microsoft Outlook/Google Calendar and launched from paired Cisco Webex room endpoints, the CS-SHARE-K9 adapter automatically syncs meeting context, allowing one-touch presentation sharing from any user’s paired client device without manual device reconnection
2. Automatic Power Management: Configurable inactivity standby timer; if no presentation sharing sessions run for the defined idle period, the CS-SHARE-K9 unit enters low-power standby mode to reduce office energy consumption; instantly wakes when a client device initiates proximity pairing or presentation casting
3. Multi-Platform Meeting Interoperability: Natively compatible with all standards-based Webex video collaboration endpoints, third-party SIP/H.323 video conferencing hardware, and standard consumer/commercial HDMI display screens; no proprietary custom AV switching hardware required for cross-platform meeting content sharing workflows
4. Third-Party AV Room Automation Integration: Supports basic bidirectional HTTP API control integration with enterprise AV control systems (Crestron, Extron, AMX); AV controllers can remotely trigger presentation stream start/stop, monitor device online status, and execute device factory reset commands for centralized conference room AV automation orchestration
5. Digital Signage Kiosk Standby Mode: When no active meetings or presentation sessions are running, the CS-SHARE-K9 can be configured to display static corporate brand graphics, office room booking calendar schedules, facility safety announcements, and internal company communications on the connected HDMI display screen as a low-cost digital signage solution.

6. Supported Enterprise Compatibility Platforms

1. On-Premises Unified Communications Architecture: Fully interoperable with Cisco Unified Communications Manager (CUCM), Cisco TelePresence Video Communications Server (VCS) X-series software platforms, and all legacy Cisco Tandberg TelePresence video endpoints; shares corporate LDAP directory authentication infrastructure for unified user identity management across all collaboration devices
2. Cloud Hybrid Collaboration Architecture: Primary native integration with Cisco Webex Control Hub cloud collaboration management platform for full remote device lifecycle management, mass firmware deployment, security policy control, and enterprise-wide device fleet monitoring; fully compatible with Cisco Webex Meetings and Webex Teams cloud meeting application ecosystems for cross-platform remote and in-person meeting workflows
3. Third-Party Interoperability Compliance: Fully standards-compliant with IEEE 802.11ac wireless networking, H.235v3 media encryption, H.264 video compression, and HDMI 1.4 digital display transmission industry standards; interoperable with all third-party SIP/H.323 video conferencing hardware, commercial AV control systems, and generic HDMI monitor/TV display products from competing hardware vendors.

7. Core Deployment Advantages of Cisco CS-SHARE-K9 (Webex Share)

1. Ultra-compact plug-and-play form factor eliminates bulky presentation laptops, physical HDMI/VGA presentation cables, and proprietary wired docking stations for all corporate huddle rooms and small meeting spaces; drastically reduces AV hardware clutter and simplifies daily employee presentation workflows
2. Native AES 128-bit SRTP end-to-end wireless presentation media stream encryption (K9 secure firmware classification) satisfies strict enterprise, government, defense, healthcare, and financial regulated industry data confidentiality compliance requirements; enables secure sharing of confidential corporate financial, legal, patient, classified business presentation content over office Wi-Fi networks without risk of unauthorized data interception
3. Ultrasonic Intelligent Proximity automatic one-tap pairing removes complex manual Wi-Fi connection steps for end users; any employee with the Webex Meetings/Webex Teams app on their laptop, phone, or tablet can instantly pair with the room’s CS-SHARE-K9 unit and begin presenting within seconds, eliminating IT support tickets related to wireless presentation connection failures
4. Unified cross-platform Webex ecosystem experience standardizes wireless presentation functionality across every corporate meeting room, whether equipped with full Cisco Webex Room Kit video conferencing hardware or standalone basic HDMI displays; employees use identical presentation controls and workflows regardless of which office meeting space they visit, reducing user training overhead
5. Zero-fan passive cooling compact chassis operates completely silently, making CS-SHARE-K9 ideal for quiet executive boardrooms, clinical healthcare consultation spaces, education training classrooms, and huddle rooms where noisy AV hardware fans create disruptive background distractions
6. Cloud-native Webex Control Hub centralized fleet management delivers full IT administrative visibility and control over all deployed CS-SHARE-K9 units across global office locations; bulk remote firmware updates, uniform security policy rollouts, real-time device health monitoring, and historical usage audit logging drastically reduce enterprise IT on-site maintenance labor costs for distributed branch office collaboration hardware fleets
7. Supports dual-use functionality: Primary wireless presentation device for live team meetings, plus configurable standby digital signage mode to repurpose idle meeting room display screens for corporate communications, room booking schedules, and facility announcements, maximizing the return on investment for existing conference room display hardware
8. Full backward compatibility with legacy Cisco TelePresence video endpoints and modern Webex Room series collaboration hardware; seamlessly integrates into existing enterprise CUCM/VCS on-premises unified communications infrastructure without requiring costly full corporate collaboration environment hardware refresh investments.

8. Supplementary Product Specification Notes

SKU / Model Naming Recap

• CS-SHARE-K9: Cisco Collaboration System Webex Share compact wireless HDMI content sharing adapter, universal 100–240V AC global mains power input variant, K9 secure firmware classification with full AES 128-bit SRTP end-to-end presentation media encryption support for regulated industry secure communication deployments.
• K9 Compliance Note: All factory CS-SHARE-K9 firmware releases implement H.235v3 AES 128-bit SRTP media stream encryption, meeting Cisco K9 secure communications hardware classification standards required for government, military, healthcare, and financial regulated secure data sharing deployments.
• NR Variant Note: No separate RF-restricted NR cellular radio variant exists for CS-SHARE-K9; the hardware contains no integrated cellular mobile radio signal generation or transmission modules, all network connectivity is delivered exclusively via dual-band Wi-Fi wireless LAN.

Regulatory Compliance Certifications

Fully compliant with global international industry certification standards including EU Low-Voltage Directive 2014/35/EU (IEC/EN 60950-1), EMC Electromagnetic Compatibility Directive 2004/108/EC, UL 60950-1 safety certification, CAN/CSA-C22.2 No. 60950-1, FCC CFR 47 Part 15 Class B electromagnetic emissions certification for consumer office electronics, and global RoHS hazardous substance restriction compliance approval.

Factory Hardware Warranty Terms

Standard 1-year limited hardware warranty coverage for brand-new factory-sealed complete CS-SHARE-K9 adapter bundles purchased through official Cisco authorized global distribution channel partners. Critical lifecycle limitation note: The product EoS/EoSS status restricts active hardware replacement warranty service eligibility for all CS-SHARE-K9 units purchased after the July 12, 2024 official End-of-Sale cutoff date; all formal Cisco technical TAC engineering support services for hardware failure remediation will terminate permanently on July 12, 2027.

UNSPSC Classification Code

43191500 (Compact wireless HDMI enterprise presentation sharing collaboration peripheral, dual-band 802.11ac Wi-Fi networking, ultrasonic proximity automatic device pairing, AES SRTP encrypted wireless content streaming, fanless passive cooling compact triangular chassis, compatible with Cisco Webex Meetings/Webex Teams client applications and all Cisco Webex room collaboration video endpoints).