Cisco WAP321-C-K9 Full English Description

Listing Title

Cisco Small Business WAP321-C-K9 Wireless-N Selectable Single-Band Access Point, IEEE 802.11n/g/b, 2×2 MIMO Up To 300 Mbps PHY Throughput, IEEE 802.3af PoE Supported, Single Point Setup Controller-Less Multi-AP Cluster Management, 8 Separate SSIDs with 802.1Q VLAN Tagging, Captive Portal Guest Authentication, Fast Roaming 802.11i Pre-Authentication, WMM Voice QoS, Dual IPv4/IPv6 Stack, Three Operation Modes (AP / WDS Bridge / Workgroup Bridge), Compact White Plastic Chassis for Desktop / Wall / Ceiling Mount, Optimized for Small Offices, Retail Shops, Cafés, Clinic Branches and SME Wireless Deployments; suffix C = China regional RF regulatory domain codeCisco

Full Commercial Product Description

The Cisco WAP321-C-K9 belongs to Cisco Small Business 300 Series wireless access point portfolio, a cost-effective standalone autonomous selectable single-band Wireless-N AP purpose-built for small and medium enterprises (SMEs) with limited dedicated IT staffing. The suffixCdenotes China RF regulatory compliance, complying with domestic radio frequency emission, channel and transmit power standards for mainland China deploymentsCisco.

Distinct from dual-band APs, WAP321 supportsselectable single radio band: administrators manually switch between 2.4 GHz or 5 GHz (cannot run both bands simultaneously), simplifying RF planning for low-interference small business environments. It delivers a maximum wireless PHY rate of 300 Mbps via 2×2 MIMO internal PIFA antennas, meeting basic office wireless demands including web browsing, file transfer, VoIP telephony and low-definition video streamingCisco Russ....

Its standout feature isSingle Point Setup, a proprietary controller-free multi-AP cluster technology: up to eight WAP321 units can form a unified wireless LAN cluster, synchronizing SSID, VLAN, security, RF channel and transmit power configurations automatically without a dedicated wireless LAN controller, drastically simplifying multi-coverage small business deployments such as multi-room retail stores and branch clinics.

Power deployment flexibility is delivered via native IEEE 802.3af Class 3 PoE PD support, enabling power and data transmission over a single Cat5e Ethernet cable for ceiling/wall mounted installations without separate local power adapters. An alternative 12V DC local power input is provided for desktop deployments where PoE-capable switches are unavailable; the DC power adapter is sold separately and not bundled with the AP itselfCisco.

Business-class Layer 2 and wireless features address SME network segmentation, guest access and security requirements: up to eight independent broadcast SSIDs bindable to isolated 802.1Q tagged VLANs to segregate staff internal networks, visitor guest Wi-Fi, VoIP phones and retail POS payment terminals. Built-in captive portal supports web-based guest authentication for temporary visitor wireless access. Fast roaming via 802.11i pre-authentication enables seamless client handoff between multiple clustered WAP321 APs without repeated full RADIUS re-authentication, maintaining stable connections for mobile staff laptops and handheld devicesCisco.

Intelligent WMM wireless QoS prioritizes latency-sensitive VoIP voice traffic to guarantee stable unified communications performance. Native dual IPv4/IPv6 full stack support future-proofs network infrastructure for next-generation IP migration projects. Three flexible operation modes adapt to diverse small business network topologies: standalone access point mode for direct wireless client access, WDS wireless bridge mode to extend wired LAN coverage across separate office spaces, and Workgroup Bridge mode to connect wired industrial equipment, printers and IP cameras wirelessly to the corporate LANCisco.

The compact lightweight white plastic chassis supports three installation forms: desktop placement, vertical wall mounting and ceiling flush mounting via the bundled mounting bracket. A single multi-color status LED delivers intuitive visual fault diagnosis, while a Kensington lock slot provides physical anti-theft protection for publicly deployed APs. The product has reached end-of-sale status and is no longer available for new orders, replaced by newer Wi-Fi 5/6 small business AP modelsCisco.

Selectable Single-Band Radio Hardware Architecture

The WAP321 features one selectable single-band 802.11n MIMO radio (either 2.4 GHz or 5 GHz, cannot run both bands simultaneously), fully backward compatible with legacy 802.11b/g client devices.

2.4 GHz Mode: 2×2 MIMO, two spatial streams, fixed 20/40 MHz channel bandwidth, integrated 2 dBi omnidirectional PIFA internal antennas. Optimized for low-bandwidth legacy IoT sensors, RFID readers and battery-powered field handheld devices; maximum single-band PHY throughput 300 Mbps.
5 GHz Mode: 2×2 MIMO, two spatial streams, supports 20/40 MHz channel widths, DFS radar frequency avoidance, integrated 2 dBi omnidirectional PIFA internal antennas. Dedicated to high-speed business laptops and video conferencing workloads to avoid 2.4 GHz household device interference; maximum single-band PHY throughput 300 Mbps.

Total aggregate wireless throughput reaches 300 Mbps (single band operation only).
Antenna Hardware: Four built-in non-detachable PIFA omnidirectional internal antennas, each with 2 dBi gain; no external RF antenna ports provided.

Core Exclusive Hardware Interfaces

1 × Gigabit 10/100/1000 BASE-T Fast Ethernet RJ45 Port: Auto-sensing, Auto-MDI/MDI-X, IEEE 802.3af PoE PD compliant, accepts power and data over single Cat5e or better Ethernet cable. Peak PoE power consumption is 10.6 W under full load operationCisco.
1 × 12V DC Power Input Jack: Alternative local power supply port for non-PoE desktop deployments; matching 12V 1A DC power adapter sold separately (not included in standard packaging).
Hardware Buttons & Slots: Power On/Off push button, recessed factory reset button, Kensington physical security lock slot.
Indicator LEDs: Single multi-color status LED for power, WLAN wireless activity and LAN Ethernet link status, providing intuitive visual fault diagnosis.

Supported Operation Modes

Access Point Mode (Default): Standard wireless access for laptops, mobile phones, tablets and SME wireless endpoints.
WDS Wireless Distribution System Bridge Mode: Point-to-point or point-to-multipoint wireless bridging to expand wired LAN coverage across separate office buildings without laying Ethernet cabling.
Workgroup Bridge Mode: Acts as a wireless receiver to connect stationary wired industrial devices (PLCs, IP cameras, POS machines) to the primary wireless network.

Key Software & SME Business Feature Set

1. Single Point Setup Controller-Less Cluster Management

Up to eight WAP321 APs can auto-discover and form a unified wireless cluster; all SSID, encryption, RF channel, transmit power and VLAN rules synchronize automatically across the entire AP group, eliminating repeated manual configuration work for multi-zone small business sites.

2. Multi-SSID & VLAN Segmentation

Supports eight independent broadcast SSIDs, each bindable to separate 802.1Q tagged VLANs (8 service VLANs + 1 dedicated management VLAN). Realizes isolated network access for internal staff, guest visitors, VoIP voice devices and retail payment terminals to prevent cross-network data leakage.

3. Secure Captive Portal Guest Access

Built-in web-based captive portal authentication for visitor wireless access; configurable login page and access time limits for temporary guest users.

4. Fast Roaming with 802.11i Pre-Authentication

Configurable mobility domain identifier enables seamless fast roaming between clustered WAP321 APs, wireless clients avoid repeated full RADIUS authentication during AP handoff, maintaining uninterrupted connections for mobile staff devices.

5. Comprehensive Wireless Security Suite

Encryption Standards: Static WEP, WPA-PSK, WPA2-PSK personal encryption; WPA2-Enterprise with IEEE 802.1X RADIUS authentication support.
Access control: MAC address filtering ACL, web management access control list, HTTPS encrypted web admin interface.
Auxiliary security: Rogue AP detection, hidden SSID broadcast suppression, wireless client isolation to block peer-to-peer device communication.

6. WMM Wireless QoS Voice Prioritization

Compliant with Wi-Fi Multimedia TSPEC standards; automatically classifies and prioritizes VoIP voice packets as highest-priority traffic to guarantee low-latency, jitter-free unified communications for remote workers using corporate IP phones.

7. Dual IPv4 / IPv6 Full Stack Support

Native full dual-stack support for both IPv4 and IPv6 protocols, compatible with IPv6 NTP, Syslog, RADIUS server services, reserving network upgrade space for future enterprise IPv6 migration.

8. Layer 2 Network Optimization Functions

Auto RF channel and transmit power selection to avoid adjacent AP RF interference; IEEE 802.1D Spanning Tree Protocol (STP) to prevent Layer 2 broadcast loops; wireless client load balancing to evenly distribute user connections across clustered APs; idle power-saving sleep mode to reduce standby power consumption.

9. Unified Management Interfaces

Embedded HTTP/HTTPS web graphical user interface (GUI): Wizard-based one-click configuration for rapid deployment within minutes.
Cisco FindIT Network Discovery Tool integration: Automated local network AP detection and centralized basic monitoring for small business IT teams.
SNMP v3 network monitoring: Compatible with mainstream SME network monitoring platforms.
Bonjour service discovery, remote web management support, centralized Syslog event logging with email alert notifications for network audit tracking and fault reporting.
Web-based firmware upgrade, import/export of full AP configuration backup files.

Power Supply Compatibility

Full-performance PoE operation: IEEE 802.3af Class 3 PoE PD, powered by PoE-capable Gigabit switches or dedicated PoE injectors; peak PoE power consumption is 10.6 W.
Local DC power alternative: 12V / 1A external DC power adapter (sold separately, not included in standard packaging).
Typical full-load power consumption: Less than 10.6 W under single-band radio active operation with Ethernet port populated.

Physical & Environmental Specifications

Dimensions (W × D × H): 169.08 × 169.42 × 35 mm (6.66 × 6.67 × 1.38 inches)
Unit Weight: 275 g (0.606 lb), lightweight white plastic chassis
Mounting Options: Desktop placement, vertical wall mounting, ceiling flush mounting via bundled installation bracket
Operating Temperature Range: 0°C ~ +40°C indoor only (not rated for outdoor deployment)
Storage Temperature Range: -20°C ~ +70°C
Operating Humidity: 10% – 85% non-condensing
Storage Humidity: 5% – 90% non-condensing
System Memory & Storage: Embedded Linux operating system, 64 MB DRAM, 16 MB Flash storage
Regulatory RF Certifications: China domestic RF regulatory compliance (suffix C domain), RoHS China compliance, EMI Class B household electronic equipment certification
Maximum Concurrent Client Capacity: Maximum 32 connected wireless clients; 20 simultaneous active business users recommended
MTBF: 492,281 hours
Warranty: Limited lifetime hardware warranty for original end-user purchasers

Key Specification Bullet Points

Model: WAP321-C-K9 (Cisco Small Business Wireless-N Selectable Single-Band Access Point; suffix C = China regional RF regulatory domain)
Wireless Standard: IEEE 802.11b/g/n selectable single-band radio (2.4 GHz or 5 GHz, cannot run both bands simultaneously), 2×2 MIMO four built-in PIFA internal antennas
Max PHY Throughput: Up to 300 Mbps (single band operation only)
Antennas: Non-detachable built-in omnidirectional PIFA internal antennas, each with 2 dBi gain
Wired Port: 1 × Gigabit 10/100/1000 BASE-T PoE RJ45 port (IEEE 802.3af PoE PD supported)
Operation Modes: Standalone AP, WDS Wireless Bridge, Workgroup Bridge
Core Exclusive Function: Single Point Setup controller-less multi-AP cluster synchronization (max eight APs per cluster); eight independent SSIDs with 802.1Q VLAN tagging; captive portal guest access; fast roaming with 802.11i pre-authentication
QoS: WMM TSPEC wireless multimedia voice traffic prioritization for VoIP workloads
Network Stack: Full dual IPv4 + IPv6 stack native support
Security: WEP/WPA/WPA2 PSK/Enterprise 802.1X RADIUS authentication, MAC ACL, HTTPS management, rogue AP detection, wireless client isolation
Management: Web GUI (HTTP/HTTPS), Cisco FindIT network discovery, SNMPv3, Bonjour, remote web access, Syslog centralized event logging, web-based firmware upgrade
Power Options: IEEE 802.3af PoE input or separate 12V DC local power adapter (not bundled)
Physical Mount: Desktop placement, vertical wall mounting, ceiling flush mounting with included bracket
Environmental Restriction: Indoor use only, operating temperature range 0°C~40°C
Typical Deployment Scenarios: Small SME offices, retail shops, coffee shops, restaurant dining areas, small branch clinics, small-scale hotel guest zones and low-user-density small business wireless coverage deployments
End-of-Sale Status: Discontinued for new sales; replaced by newer Wi-Fi 5/6 small business AP models

Model Quick Reference

WAP321-C-K9: China domestic regulatory domain SKU of WAP321 selectable single-band Wireless-N AP
Suffix Domain Code Definitions: C = China RF regulatory compliance; alternative variants include WAP321-A-K9 (North America FCC), WAP321-E-K9 (EMEA Europe/Middle East/Africa)
Platform Differentiation vs WAP121: WAP321 supports selectable 5 GHz band operation, captive portal guest access and fast roaming mobility domain functions; WAP121 is fixed single-band 2.4 GHz only without 5 GHz radio capability
Platform Distinction vs Enterprise CAPWAP APs: WAP321 is standalone autonomous small business AP without centralized wireless controller dependency, equipped with Single Point Setup cluster function for low-cost multi-AP SME deployments
Upgraded Alternatives: Cisco WAP125 dual-band concurrent Wi-Fi 5 AP, WAP150 Wi-Fi 5 dual-band access point for higher throughput multi-band small business networks


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