Cisco CS-DESKHUB-K9

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

1. Product Overview

Cisco CS-DESKHUB-K9, full official product nameCisco Webex Desk Hub All-in-One Desktop Collaboration Ethernet Hub & Audio-Visual Base Station (Radio Enabled Encrypted K9 Variant). It is a compact multi-port collaboration docking hub designed to pair with Cisco DX70/DX80 desktop video phones and Webex Desk series endpoints, engineered for corporate personal office workstations, hot-desking zones, hybrid home offices and small private huddle spaces supporting single-user daily collaboration workflowsCisco.

SKU Naming Breakdown

1. DESKHUB: Webex Desk Hub, dedicated desktop collaboration base hub, core function includes built-in multi-port Gigabit Ethernet switch, integrated microphone array, stereo speaker system, USB expansion ports and wireless radio modules, acting as unified cable management and connectivity central hub for desk collaboration devices and BYOD laptops.
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 comes factory pre-installed with dual-band Wi-Fi 802.11ac (2.4GHz / 5GHz) 2×2 MIMO wireless radio and Bluetooth modules, enabling wireless screen mirroring, Cisco Intelligent Proximity mobile device pairing, wireless LAN access for cloud device management and Bluetooth headset connection.
3. High-security counterpart model: CS-DESKHUB-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, switching, USB expansion 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 capabilities.

Product Lifecycle Notice

The Cisco Webex Desk Hub (CS-DESKHUB-K9) product line reached End-of-Sale (EoS) on December 14, 2022, with official End-of-Support (EoSS) date scheduled for March 31, 2023. Cisco has ceased new hardware production, feature firmware updates and active technical support; only limited archived documentation and spare parts stock remain available for existing deployed unitsCisco.

This ultra-compact lightweight unified chassis adopts minimalist matte plastic and soft fabric grille design for easy desktop placement, small enough to fit under desk monitors or alongside DX70/DX80 video phones. The fully integrated hardware suite includes built-in multi-port Gigabit Ethernet pass-through switch, compact 4-element 360° omnidirectional beamforming microphone array, integrated full-range stereo speaker system, multi-generation USB expansion hub, internal universal power supply unit and integrated dual-band wireless radio modules.

The factory-sealed complete standard bundle contains the Webex Desk Hub main compact base unit, power supply adapter, 2m CAT6 Ethernet patch cable, USB-C connection cable and standard documentation package. Optional certified accessories include short-length shielded Ethernet cables, USB peripheral extension cords and desk cable management clips.

Powered by lightweight embedded RoomOS firmware optimized for hub infrastructure workloads, the radio-enabled Webex Desk Hub supports dual hybrid deployment architectures: cloud registration and centralized device lifecycle administration via Cisco Webex Control Hub; on-premises unified communications deployment with Cisco Unified Communications Manager (CUCM) v10.0 and above, paired with Cisco Expressway-C / Expressway-E cross-firewall remote endpoint gateways for corporate distributed branch networks.

Fully supported core hub capabilities: integrated 4-mic beamforming audio capture, built-in stereo conference speaker output, multi-port Gigabit Ethernet pass-through switching, multi-channel USB peripheral expansion, AI Acoustic Fence background noise suppression, wireless BYOD content sharing, OBTP one-touch meeting join pass-through for connected video endpoints, basic workspace occupancy sensor detection and customizable xAPI room automation macros for desk workspace orchestration.

2. Compact Integrated Audio Capture & Wireless Content Sharing System

Built-in 4-Element Beamforming Microphone & Stereo Speaker

• Microphone hardware specifications: 4-element circular 360° omnidirectional beamforming microphone array embedded on the top grille of the hub chassis, optimized for single-user desk voice capture within a 1.5m pickup radius, supporting AI directional voice targeting during active meetings.
• Speaker hardware specifications: Single full-range stereo speaker driver with passive bass radiator, frequency response range 80Hz–20kHz, maximum sound pressure level 88dB SPL for personal desk conference audio playback and background media audio.
• Audio DSP processing fully functional on radio-enabled K9 hardware:
  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. Digital acoustic echo cancellation with tight active lip synchronization to eliminate audio-video synchronization delay when paired with DX70/DX80 desktop video phones.
  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.

Hybrid Wired/Wireless Content Sharing Mechanisms

• Supported video encoding/decoding standards: H.264 AVC, H.265 HEVC; dual-stream presentation transmission supported via H.239 (H.323) and BFCP (SIP) industry-standard protocols.
• Bandwidth and resolution performance: Maximum pass-through call bandwidth up to 6 Mbps with dynamic adaptive bitrate control; content sharing pass-through supports up to 1080p30 full HD resolution from BYOD laptops, document cameras and external media playback devices connected via USB or Ethernet.
• 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 content pass-through; built-in Ethernet switch for wired laptop network 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 visitor attendees without pre-installed software.

3. Embedded Lightweight Digital Audio DSP System

The Webex Desk Hub compact chassis integrates a streamlined embedded audio processing stack paired with a dedicated digital signal processing (DSP) engine with per-channel acoustic echo cancellation, optimized for single-user desk workstation voice capture and compact personal stereo audio playback.

Audio Input Interfaces

1. Built-in 4-element 360° omnidirectional beamforming microphone array for focused close-range single-user voice pickup without mandatory external table microphones for personal office workspaces.
2. External audio expansion options: USB-A port supporting wired USB enterprise headsets, Bluetooth wireless headset pairing for radio-enabled K9 models.
3. Embedded digital audio decoding streams extracted from USB-C wired BYOD audio connection and connected DX series desktop video phone audio pass-through.

Supported Audio Codecs

• 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.
• Auxiliary audio output: 1× 3.5mm stereo analog headphone output jack for private listening and hearing induction loop assistive audio systems for accessibility compliance.

4. Embedded Hub 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 removable side plastic cover for clean desk cable management:

1. Built-in 3-port Gigabit Ethernet (10/100/1000 Mbps) RJ45 internal switch:
   • Port 1: Uplink corporate LAN port for building network access, device cloud/on-prem CUCM registration and real-time media stream data transmission;
   • Port 2: Downlink pass-through port for connecting Cisco DX70/DX80 desktop video phones;
   • Port 3: Secondary downlink pass-through port for connecting user corporate desktop PC without additional wall network jacks.
2. Built-in dual-band Wi-Fi 802.11ac (2.4GHz / 5GHz) 2×2 MIMO wireless radio + Bluetooth radio modules for wireless LAN access, mobile device proximity pairing and wireless screen mirroring; enterprise-grade WPA3 wireless security fully supported.
3. USB Interfaces:
   • 2× USB-A 2.0 ports for wired USB enterprise headsets, external document cameras and USB peripherals;
   • 1× USB-C port for BYOD laptop connection (content pass-through, peripheral data transfer);
   • Micro USB service maintenance port for batch firmware upgrades, centralized bulk device configuration deployment and remote IT troubleshooting by enterprise IT administrators.
4. 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.
5. Factory reset pinhole and Kensington security lock slot for physical anti-theft protection of the compact desktop hub 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: External universal auto-ranging AC power supply adapter paired with the hub 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 45 W; networked standby power 3 W, deep standby idle low-power mode consumption 0.8 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 desk 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: No dedicated wall-mount kit; designed exclusively for flat desktop surface placement, with anti-slip rubber base pads to prevent sliding during daily operation.
• Physical dimensions (main compact hub unit only): Width 236 mm, Height 163 mm, Depth variable 66mm–119mm (adjustable tilt stand); total unit weight approximately 1.24 kg (2.73 lb).

5. Core Enterprise Call & Intelligent Meeting User Experience Functions

Standard Enterprise Call Pass-Through Feature Set

• Pass-through support for point-to-point HD video calls, ad-hoc multi-party embedded multi-site video conferencing on connected DX70/DX80 desktop video phones
• Full pass-through of core call control functions: Call hold, attended transfer, blind transfer, local microphone mute, customizable speed dial shortcuts
• Corporate LDAP directory lookup pass-through, 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 Hub Workflow Functions

1. OBTP (One Button To Push) Pass-Through: Transmits single-touch one-click meeting join signals to connected DX series desktop video phones for all pre-scheduled Webex cloud meetings; fully compatible with both cloud-hosted and on-premises enterprise wired/wireless deployment architectures.
2. Built-in motion sensor automatic hub wake-up: The compact desk hub automatically powers active audio processing when human presence motion is detected in the personal workspace, eliminating manual power-on operations before scheduled meetings.
3. Native multi-platform meeting interoperability pass-through: Delivers direct one-touch access to scheduled Webex Meetings, Microsoft Teams Rooms, Zoom for Cisco Rooms and Google Meet conference sessions to connected DX video phones without auxiliary external AV switching hardware.
4. Multi-mode hub control options: Operate all core hub audio, network and wireless functions via remote IT administrator portal, or pass-through control via the touch screen UI of paired DX70/DX80 desktop video phones; 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 desk workspace peripherals including auxiliary display screens, desk lighting systems via standardized xAPI control system interfaces and customizable automation macros for automated personal desk workspace workflow management.
6. Compact auxiliary digital whiteboard content pass-through: Transmits offline whiteboard canvas data, multi-color annotation tools, shape templates, text input, file import/export and cloud storage sharing signals to connected desktop video endpoints for meeting presentation markup and individual brainstorming note storage.
7. Lightweight digital signage pass-through mode: Relays configurable automatic screen scheduler content (corporate announcements, personal calendars, task lists) to paired DX series video phones when no active meeting is running.

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) v10.0 and later stable official releases with dedicated Desk Hub 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, pass-through audio/video support for third-party meeting platforms.

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

1. Integrated dual-band Wi-Fi 802.11ac and Bluetooth wireless ecosystem delivers seamless AirPlay, Miracast wireless screen mirroring and Cisco Intelligent Proximity mobile device pairing, removing mandatory wired laptop cable connection requirements for corporate office and hybrid workers.
2. All-in-one compact desktop hub design consolidates 3-port Gigabit Ethernet network switch, 4-element full-room beamforming microphone array, integrated stereo conference speaker system and multi-port USB peripheral expansion into a single tiny desktop unit, eliminating messy separate network switches, external desk microphones, standalone desktop speakers and multi-port USB hubs, drastically reducing desk cable clutter for corporate personal workstations paired with DX70/DX80 desktop video phones.
3. Built-in 4-element focused 360° beamforming microphone array provides crystal-clear close-range single-user voice pickup without external table microphones for personal office workspaces, eliminating additional peripheral hardware capital investment for distributed corporate desk fleets equipped with DX series desktop video phones.
4. Native certified multi-vendor meeting platform pass-through support fully integrates Webex, Microsoft Teams Rooms, Zoom and Google Meet without proprietary platform lock-in, perfectly suited for modern hybrid enterprise collaboration ecosystems where office employees utilize multiple third-party conferencing applications on paired desktop video endpoints.
5. Multi-function multi-port Ethernet pass-through switch delivers three independent Gigabit LAN connections in one compact hub, enabling simultaneous network access for the desktop video phone, user corporate PC and wireless BYOD devices without additional wall Ethernet jack installation, significantly reducing corporate office network infrastructure deployment costs for hot-desking and individual private offices.
6. 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 desk hub fleets across global corporate office locations.
7. Ultra-compact lightweight low-profile desktop form factor with anti-slip rubber base pads occupies minimal desk surface space, with concealed port cable cover design eliminating scattered loose cable visual clutter in modern corporate personal office and hybrid home office workspaces.

8. Supplementary Product Specification Notes

1. SKU Naming Definition Recap:
   • DESKHUB = Webex Desk Hub compact desktop collaboration base station, integrated Ethernet switch, microphone array, speaker hub designed for pairing with Cisco DX70/DX80 desktop video phones;
   • K9 = Encrypted secure firmware with full AES-SRTP media encryption; radio-enabled variant factory equipped with integrated dual-band Wi-Fi 802.11ac and Bluetooth radio modules; Matching high-security No-Radio counterpart model: CS-DESKHUB-NR-K9 with all wireless radio hardware fully removed. All audio, network switching, USB expansion and call pass-through 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-DESKHUB-K9 compact desktop collaboration hub systems purchased through official Cisco authorized global distribution channels. Note: Product EoS/EoSS status limits active warranty service for units purchased after December 14, 2022.
4. UNSPSC Classification Code: 43191500 (Compact desktop all-in-one collaboration base station with integrated Gigabit Ethernet switch, microphone array and stereo speaker system for pairing with Cisco DX series desktop video phones, radio-enabled enterprise encrypted variant).