Cisco CS-DESK-K9

Cisco Webex Desk All-in-One Desktop Interactive Collaboration Endpoint (Radio Enabled Encrypted K9 Variant) Full Official Specification Document

1. Product Overview

Cisco CS-DESK-K9, full official product nameCisco Webex Desk All-in-One Interactive Video Conferencing & Digital Whiteboard Desktop Collaboration Endpoint (Radio Enabled Encrypted K9 Variant). It is Cisco’s mid-tier fixed desktop collaboration hub, purpose-built for standard office personal workstations, hot-desking zones, small private focus rooms and hybrid home office environmentsCisco.

SKU Naming Breakdown

1. DESK: Webex Desk base desktop collaboration unit, equipped with a 24-inch full-size interactive touch display, 8MP auto-framing camera, 4-element beamforming microphone array and integrated full-range stereo speaker system. Distinguished from compact Desk Mini (15.6-inch portable) and high-end Desk Pro (27-inch 4K screen) models.
2. K9: Cisco enterprise encrypted firmware variant, supporting AES 128/256-bit end-to-end SRTP media encryption for all meeting audio, video and content sharing data streams. This radio-enabled unit is factory pre-installed with dual-band Wi-Fi 802.11ac (2.4GHz / 5GHz) 2×2 MIMO wireless radio and Bluetooth 4.2 modules, enabling wireless screen mirroring, Cisco Intelligent Proximity mobile device pairing, wireless LAN access for cloud device management and Bluetooth headset connectionCisco.
3. High-security counterpart model: CS-DESK-NR-K9 (No Radio variant). All Wi-Fi and Bluetooth radio hardware is fully removed at factory production to satisfy strict RF-restricted compliance requirements for classified government, military and regulated financial office environments. All core audio, video, touch screen and call processing functions are identical between K9 and NR variants; the only functional limitation on NR units is permanent deactivation of all wireless sharing, mobile pairing and Bluetooth peripheral connection capabilitiesCisco.

Product Lifecycle Notice

The Cisco Webex Desk product line was launched in 2021 and remains commercially available for global ordering as of 2026. Cisco provides continuous RoomOS firmware feature updates, critical security patches, spare parts inventory and global 24/7 technical support services for all deployed units with no announced end-of-sale timeline.

This sleek unified all-in-one chassis adopts minimalist lightweight aluminum frame and soft fabric speaker grille design, winner of the Red Dot Design Award 2021. The fully integrated hardware suite includes a 24-inch edge-lit IPS anti-glare capacitive multi-touch display, built-in 8MP wide-angle AI camera with mechanical privacy shutter, dense 4-element 360° omnidirectional beamforming microphone array, premium full-range stereo speaker system with optimized voice frequency tuning, and integrated internal power supply unitCisco.

The factory-sealed complete standard bundle contains the Webex Desk main desktop all-in-one unit, power adapter, 3-meter CAT6 Ethernet cable and standard documentation package. Optional certified accessories include dedicated stylus kit (2 magnetic styluses), reinforced wall-mount bracket kit, external wired headset and compatible USB peripheral accessoriesCisco.

Powered by Cisco RoomOS 10 / RoomOS 11 purpose-built collaboration operating system, the radio-enabled Webex Desk supports dual hybrid deployment architectures: cloud registration and centralized full-lifecycle device management via Cisco Webex Control Hub; on-premises unified communications deployment with Cisco Unified Communications Manager (CUCM) v10.5 and above, paired with Cisco Expressway-C / Expressway-E cross-firewall remote endpoint gateways for corporate distributed branch networks.

Fully supported core capabilities: AI auto-framing & SpeakerTrack active speaker tracking camera processing, Acoustic Fence AI background noise suppression, native digital whiteboarding with multi-user touch/stylus annotation, multi-platform third-party meeting app compatibility, OBTP one-touch meeting join, USB-C multi-function BYOD laptop passthrough (extended secondary display + touch screen redirection + laptop power delivery), hot-desking support, Webex Assistant voice control and customizable xAPI room automation macros.

2. 24-inch Interactive Full HD Touch Display & Integrated 8MP AI Camera System

24-inch IPS Interactive Touch Screen

• Panel specifications: Single 24-inch edge-lit IPS TFT-LCD interactive touch panel, standard 16:9 widescreen aspect ratio, native 1920 × 1080 (Full HD) physical resolution, anti-glare surface coating to reduce office ambient light reflection.
• Display performance parameters: Static contrast ratio 1000:1, nominal peak brightness 300 cd/m², gray-to-gray response time 8ms, ±88° ultra-wide horizontal and vertical viewing angles to deliver uniform clear visuals for personal desktop use.
• Touch functionality: Projected capacitive multi-touch technology, supporting multi-point simultaneous writing, drawing and digital annotation for whiteboarding and meeting content markup. Optional magnetic active stylus pens provide precise sketching and presentation markup, with magnetic storage on the display side bezelCisco.
• Four core operating modes of the touch screen optimized for personal office workspaces:
  1. Native Webex video conference mode: Displays remote participant video grid and shared presentation content simultaneously;
  2. Standalone offline digital whiteboard mode: Infinite canvas brainstorming, drawing and cloud note storage without connecting to any meeting call;
  3. BYOD laptop secondary display mode: USB-C connected laptop screen extension with full touch redirection control over laptop applications;
  4. Digital signage / kiosk mode: Displays corporate calendars, task lists, front-desk information and office announcements when no active meeting is running.

Integrated 8MP Wide-Angle AI Camera & Intelligent Camera Suite

• Camera hardware specifications: Single built-in 8MP 1/3.2-inch CMOS camera sensor embedded at the top bezel of the touch display; fixed-focus optical lens with f/2.0 aperture, 64° horizontal / 50° vertical field of view, native 1080p30 live video capture resolution, automatic low-light exposure correction, auto-focus, brightness and white balance adjustment, plus mechanical sliding privacy shutter with active LED in-call indicator for physical camera blockingCisco.
• AI camera processing fully functional on radio-enabled K9 hardware:
  1. AI Auto Framing & SpeakerTrack Active Speaker Tracking: The built-in 4-element beamforming microphone array accurately pinpoints active talking participants; smooth digital zoom automatically frames each speaker without mechanical pan/tilt movement or operational noise.
  2. Auto Light Adjustment: Intelligent sensor automatically optimizes camera exposure, brightness and white balance to compensate for dim office lighting or backlit window environments.
  3. Virtual background support for privacy during remote video calls.
• Physical privacy protection: Built-in mechanical sliding privacy shutter that fully covers the camera lens during confidential private meetings to completely block all video capture, with LED indicator clearly showing camera active/inactive status.

Video Codecs & Hybrid Wired/Wireless Content Sharing Mechanisms

• Supported video encoding/decoding standards: H.263, H.264 AVC, H.265 HEVC; dual-stream presentation transmission supported via H.239 (H.323) and BFCP (SIP) industry-standard protocolsCisco.
• Bandwidth and resolution performance: Maximum point-to-point call bandwidth up to 6 Mbps with dynamic adaptive bitrate control; live meeting participant video streams support maximum 1080p30 full HD resolution, content sharing input supports up to 4K@30fps ultra-high resolution content from BYOD laptops and document cameras.
• Hybrid wired + wireless content sharing modes (wireless functions exclusive to radio-enabled K9 variant):
  1. Wired direct BYOD sharing: USB-C port supporting DisplayPort Alternate Mode for laptop screen extension up to 1080p60, touch screen redirection for Windows laptops and up to 60W power delivery to connected laptops; single HDMI 2.0 Type-A input port for hardwired external media device connection.
  2. Wireless sharing suite: Apple AirPlay wireless screen mirroring, Miracast over infrastructure, Cisco Intelligent Proximity mobile device pairing, zero-install browser-based guest sharing for temporary visitors without pre-installed software.
• HDMI CEC automatic display power management: The onboard RoomOS codec automatically powers the integrated 24-inch touch screen on/off and switches active input signal sources synchronized to OBTP scheduled meeting start and end events.

3. All-In-One Professional-Grade Digital Audio DSP System

The Webex Desk unified chassis integrates a complete professional audio stack paired with a dedicated multi-core digital signal processing (DSP) engine with independent per-channel acoustic echo cancellation, optimized for standard office personal workstation voice capture and balanced full-range stereo audio playback.

Audio Input Interfaces

1. Built-in premium 4-element 360° omnidirectional beamforming microphone array for focused close-range voice pickup without mandatory external table microphones for single-user personal workspaces.
2. External audio expansion options: USB-A port supporting wired USB headsets, Bluetooth wireless headset pairing for radio-enabled K9 models.
3. Embedded digital audio decoding streams extracted from the HDMI presentation input source and USB-C wired BYOD audio connection.

Advanced Multi-Stage AI Audio DSP Processing Suite

1. Acoustic Fence AI Adaptive Background Noise Suppression: Intelligently filters disruptive ambient background sounds including HVAC fan hum, keyboard typing, paper rustling and idle office chatter without distorting natural human speech waveforms.
2. Full digital acoustic echo cancellation with ultra-tight active lip synchronization to eliminate audio-video synchronization delay and out-of-sync remote participant audio playback.
3. Automatic Gain Control (AGC): Uniformly balances inconsistent voice volume levels for consistent audio loudness for all remote meeting attendees.
4. True full-duplex simultaneous two-way audio transmission, built-in self-hear monitoring function for local microphone audio preview, fully adjustable input gain for connected external audio peripherals, plus de-reverberation and music mode audio optimization.

Supported Audio Codecs & Integrated Audio Output

• Wideband and high-fidelity voice codecs: G.711a/μ, G.722 wideband (20kHz full audio frequency response), G.722.1, G.729A/B, AAC-LD, Opus stereo lossless voice transmission.
• Integrated speaker system specifications: Premium single-channel full-range speaker assembly with optimized voice tuning; frequency response range 80Hz–20kHz, maximum sound pressure level 90dB SPL for immersive personal workspace audio playback. An auxiliary stereo 3.5mm mini-jack output supports external headphones and hearing induction loop assistive audio systems for accessibility compliance.

4. Onboard RoomOS Codec Wired & Wireless Interfaces, Network & Power Specifications

Full Connectivity Ports (Radio Enabled K9 Model with Wi-Fi & Bluetooth Radio Modules)

All ports are concealed under a magnetic removable rear cover for clean cable management:

1. Single Gigabit Ethernet (10/100/1000 Mbps) PoE++ capable RJ45 wired port: Primary corporate LAN port for wired network access, device cloud/on-prem CUCM registration and real-time media stream data transmission.
2. Built-in dual-band Wi-Fi 802.11ac (2.4GHz / 5GHz) 2×2 MIMO wireless radio + Bluetooth 4.2 radio modules for wireless LAN access, mobile device proximity pairing and wireless screen mirroring; enterprise-grade WPA3 wireless security fully supported.
3. Video I/O Ports:
   • 1× HDMI 2.0 Type-A input port supporting up to 1080p60 content
4. USB Interfaces:
   • 2× USB-A 2.0 ports for wired USB headsets, external cameras and USB peripherals;
   • 1× USB-C port for BYOD laptop connection (display extension, touch redirect, up to 60W PD charging);
   • Micro USB service maintenance port for batch firmware upgrades, centralized bulk device configuration deployment and remote IT troubleshooting by enterprise IT administrators.
5. Audio I/O Ports: 1× 3.5mm stereo analog headphone output jack; additional audio functionality covered via USB-A, USB-C and Bluetooth wireless connections.
6. Factory reset pinhole and Kensington security lock slot for physical anti-theft protection of the desktop all-in-one chassis.

Network Security & QoS Compliance

• Dual-stack IPv4 / IPv6 network protocol support, DHCP automatic IP address assignment via wired Ethernet or wireless Wi-Fi radio.
• Enterprise wired/wireless network security standards: IEEE 802.1X EAP device authentication, IEEE 802.1Q VLAN tagging, IEEE 802.1p Layer 2 QoS priority marking to prioritize real-time voice and video media traffic over standard office data packets.
• End-to-end AES 128/256-bit encrypted SRTP media streams for SIP/H.323 signaling traffic and meeting audio/video media payloads; secure remote device administration via SSH, HTTPS, SSL/TLS encrypted management portals.
• Advanced enterprise certificate management support: Manufacturer-Installed Certificates (MIC), Locally Significant Certificates (LSC), CAPF Certificate Authority Proxy Function authentication for seamless CUCM on-premises integration; X.509 DER/Base64 digital certificates with 1024/2048/4096-bit key size compatibility.
• Firewall traversal support via Cisco Expressway Series gateways and industry-standard H.460.18 / H.460.19 protocols for secure off-site remote endpoint registration across corporate network firewalls via wired or wireless network infrastructure.

Power & Physical Dimensions

• Power supply specifications: Integrated internal universal auto-ranging AC power supply built into the unified chassis, input voltage range 100–240 VAC, 50/60 Hz global mains input compatibility for worldwide hybrid work deployments.
• Power consumption metrics: Maximum full-load active meeting operating power 160 W; networked standby power 7 W, deep standby idle low-power mode consumption 1.2 W.
• Operating environmental range: Ambient operating temperature 0°C to 35°C (32°F to 95°F); relative humidity 20%–90% non-condensing for stable 24/7 continuous personal workspace operation.
• Storage and transport environmental range: -20°C to 60°C (-4°F to 140°F) with non-condensing humidity for warehouse storage and inter-region transportation.
• Mounting accessory compatibility: Optional reinforced wall-mount bracket kit available for fixed wall installation; integrated adjustable desktop stand standard for desk placement.
• Physical dimensions (main unit with standard desktop stand): Height 630 mm, Width 570 mm, Depth 165 mm; total unit weight approximately 14.3 kg (31.5 lb).

5. Core Enterprise Call & Intelligent Meeting User Experience Functions

Standard Enterprise Call Feature Set

• Point-to-point HD video calls, ad-hoc multi-party embedded multi-site video conferencing
• Call hold, attended transfer, blind transfer, local microphone mute, customizable speed dial shortcuts
• Corporate LDAP directory lookup, integrated visual voicemail support, URI dialing, RFC 4733 DTMF tone transmission
• NTP network time synchronization, DNS service discovery, automatic gatekeeper discovery for H.323 legacy endpoint interoperability.

Intelligent Meeting Workflow Functions

1. OBTP (One Button To Push): Single-touch one-click meeting join for all pre-scheduled Webex cloud meetings; fully compatible with both cloud-hosted and on-premises enterprise wired/wireless deployment architectures.
2. Motion sensor automatic room wake-up: The desktop all-in-one system automatically powers on when human presence motion is detected in the personal workspace, eliminating manual power-on operations before scheduled meetings.
3. Native multi-platform meeting interoperability: Direct one-touch access to scheduled Webex Meetings, Microsoft Teams Rooms, Zoom for Cisco Rooms and Google Meet conference sessions without auxiliary external AV switching hardware.
4. Multi-mode meeting control options: Operate all core conference functions via the built-in touch screen, infrared remote control and Webex desktop wired administrator portal; wireless mobile Webex app pairing available via built-in Wi-Fi/Bluetooth radio modules for K9 models.
5. Full room automation integration: Supports wired control linkage with third-party workspace peripherals including auxiliary display screens, desk lighting systems via standardized xAPI control system interfaces and customizable automation macros for automated personal workspace workflow management.
6. Professional desktop digital whiteboard functionality: Standalone offline whiteboard mode with unlimited infinite canvas space, multi-color annotation tools, geometric shape templates, text input, file import/export, cloud storage and one-click content sharing to meeting participants or email recipients, optimized for individual office worker quick brainstorming and personal note-taking.
7. Digital signage / kiosk operation mode: Configurable automatic screen scheduler to display personal calendars, task lists and corporate office announcements when no active meeting is running.
8. Webex Assistant voice control: Built-in touchless voice assistant supporting natural language conference control commands, enabling hands-free meeting operation without touching the screen.

6. Supported Call Control & Compatibility Platforms

1. Cloud deployment: Cisco Webex Cloud Service, centralized global device lifecycle management via cloud-based Webex Control Hub administrator portal (device registration supported via wired Ethernet or wireless Wi-Fi radio).
2. On-premises unified communications deployment: Cisco Unified Communications Manager (CUCM) v10.5 and later stable official releases with dedicated Desk hardware compatibility packs.
3. Remote registration gateway: Cisco Expressway Series (Expressway-C / Expressway-E) gateways for secure cross-firewall remote endpoint registration for distributed multi-branch enterprise deployments.
4. Third-party interoperability: Standards-compliant SIP proxy servers and H.323 gatekeepers with full cross-vendor video endpoint compatibility.

7. Core Deployment Advantages of Radio-Enabled Webex Desk (CS-DESK-K9)

1. Integrated Wi-Fi 802.11ac and Bluetooth wireless ecosystem delivers seamless AirPlay, Miracast wireless screen mirroring and Cisco Intelligent Proximity mobile pairing, removing mandatory wired laptop cable connection requirements for hybrid office and hot-desking workers.
2. Fixed desktop all-in-one design consolidates wide-angle AI camera, high-performance 4-element beamforming microphone array, premium full-range speaker system and large 24-inch interactive touch digital whiteboard into a single sleek unit, eliminating messy separate peripherals (webcam, mic, monitor, speaker) and reducing desk cable clutter drastically.
3. Built-in 4-element focused beamforming microphone array provides clear close-range voice pickup without external table microphones for single-user personal workspaces, eliminating additional peripheral hardware capital investment for individual corporate employees.
4. Native multi-vendor meeting platform certification fully supports Webex, Microsoft Teams, Zoom and Google Meet without proprietary platform lock-in, perfectly suited for modern hybrid enterprise collaboration ecosystems where employees use multiple third-party conferencing applications.
5. Exclusive desktop digital whiteboard feature enables offline individual brainstorming, real-time touch/stylus annotation during live meetings, plus cloud storage and one-click content sharing, removing the need for separate portable physical whiteboards for office workers.
6. Multi-function USB-C BYOD passthrough delivers three core functions in a single cable: laptop secondary extended display, full touch screen redirection control over laptop applications and up to 60W laptop power charging, drastically simplifying desk cable clutter for hybrid workers.
7. Centralized mass wired/wireless device management via Webex Control Hub or CUCM simplifies bulk firmware batch upgrades, batch configuration template deployment, real-time device health monitoring and remote IT troubleshooting, drastically reducing daily enterprise IT management workload for distributed office workstation fleets.
8. Award-winning minimalist premium aluminum and soft fabric industrial design harmonizes seamlessly with modern corporate office, home office and co-working space interior aesthetics, occupying minimal desk surface space and eliminating bulky scattered separate AV hardware visual clutter for personal workstations.

8. Supplementary Product Specification Notes

1. SKU Naming Definition Recap:
   • DESK = Webex Desk base model, fixed desktop 24-inch all-in-one touchscreen video conferencing collaboration endpoint for corporate personal workstations and hot-desk offices;
   • K9 = Encrypted secure firmware with full AES-SRTP media encryption; radio-enabled variant factory equipped with integrated Wi-Fi 802.11ac and Bluetooth radio modules; Matching high-security No-Radio counterpart model: CS-DESK-NR-K9 with all wireless radio hardware fully removed. All audio, video, touch screen and call processing features are identical between two variants; only wireless sharing and mobile pairing functions are permanently disabled on NR hardware.
2. Regulatory Compliance: Compliant with global international industry certification standards including EMC Directive 2014/30/EU, Low Voltage Directive 2014/35/EU, RoHS 2011/65/EU, WEEE 2012/19/EU, Radio Equipment Directive (RED) 2014/53/EU, FCC Class A electromagnetic emissions certification and NRTL global product safety approval.
3. Factory Hardware Warranty: Standard 1-year limited hardware warranty for brand-new factory-sealed CS-DESK-K9 all-in-one desktop collaboration systems purchased through official Cisco authorized global distribution channels.
4. UNSPSC Classification Code: 43191500 (24-inch fixed desktop all-in-one interactive touchscreen video conferencing & personal digital whiteboard collaboration endpoint for corporate office workstations and hot-desk deployments, radio-enabled enterprise encrypted variant).