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AIR-CB21AG-A-K9
Cisco AIR-CB21AG-A-K9 Aironet CB21AG 802.11a/b/g 54 Mbps Car...
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AIR-CB21AG-A-K9 is a Cisco Aironet CB21AG Wireless Client Adapter with a 54 Mbps dual-band radio, integrated antenna and CardBus Type II form factor for external 32-bit CardBus slots. The FCC configuration targets laptops and notebooks that retain a 32-bit CardBus bay. Cisco laptop network adapter searches match the 68-pin CardBus interface, not PCI or USB slots. CardBus Type II fit puts the radio and the permanently attached 0-dBi dual-band diversity antenna in the notebook side slot. The radio connects to 2.4 GHz 802.11b/g access points and 5 GHz 802.11a access points. The card works in infrastructure mode with access points or in ad hoc mode with peers. AIR-PI21AG-A-K9 is the PCI form-factor sibling for desktop systems with an empty PCI expansion slot.
AIR-CB21AG-A-K9 price for new stock is $96.64, a 14.6% saving from the Cisco list price of $113.21. AIR-CB21AG-A-K9 refurb price is $97.30. AIR-CB21AG-A-K9 is in stock and available for free next-day delivery. (terms applied)
Request bulk order quote for AIR-CB21AG-A-K9 for additional pricing. Browse the full Cisco Aironet CB21AG PI21AG Wireless Client Adapters series or explore all Cisco products.
54 Mbps is the top radio rate, and lower rates are 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36 and 48 Mbps. 100 mW is the 802.11b/g transmit setting at 1, 2, 5.5 and 11 Mbps, while 40 mW is the 802.11a transmit setting at 6, 9, 12, 18 and 24 Mbps. 90 ft (27 m) indoor range at 54 Mbps on 802.11b/g assumes maximum transmit power with an Aironet 1200 access point and 2.2 dBi dipole antenna. AIR-CB21AG-A-K9 uses Windows 2000 or Windows XP drivers, ADU profiles, ASTU status and WPA, 802.1X, LEAP, PEAP, EAP-TLS, TKIP, 40-bit WEP and 128-bit WEP. 0°C to 70°C operation and 44 g weight set the notebook handling limits.
New sealed carries up to 3-year extended warranty, certified refurbished carries up to 1 year, and every condition carries 30-day returns; terms apply. Certified refurbished AIR-CB21AG-A-K9 is inspected and bench-tested in a compatible host, the radio associates with an access point, and the antenna or antenna connectors are inspected. Cisco service ended on 31 May 2018, so ORM's warranty is the cover that applies. Order the FCC CardBus code and match the endpoint operating system before the PO. Regional stock/RMA covers UK, EU, US and MEA; RMA with advance replacement, PO accepted and Net-30 for government apply.
| Key Specs | Key Spec Values |
|---|---|
Wireless | 802.11a/b/g, 2.4/5 GHz, 54M |
Fits | External 32-bit CardBus slot |
Lifecycle Status | Cisco service ended 31 May 2018 |
Form Factor | CardBus Type II, 68-pin |
Technology | Wireless LAN |
Minimum Software | Windows 2000 or Windows XP |
A depot team replacing a failed notebook CardBus radio after Cisco service ended on 31 May 2018 needs the same FCC configuration and Windows 2000 or Windows XP driver path. Specify AIR-CB21AG-A-K9 in new sealed or certified refurbished condition before the PO.
A field team with a laptop or notebook already using a side 32-bit CardBus slot needs a same-form 802.11a/b/g client card rather than a PCI adapter. Check the 68-pin CardBus slot, FCC region and Windows 2000 or Windows XP image before the PO.
A warehouse or lab retaining Aironet 340, 350, 1100 or 1200 access points needs 2.4 GHz 802.11b/g and 5 GHz 802.11a client coverage from the CardBus radio. Specify the regional PID and verify the FCC-region approval before the PO.
Desktop PCI expansion
AIR-CB21AG-A-K9 uses a 32-bit CardBus slot. Desktop systems with an empty PCI expansion slot take AIR-PI21AG-A-K9 for the same 802.11a/b/g radio family.
Handheld PDA use
The CB21AG client adapter cannot be used with handheld PDAs under the RF exposure restrictions. Use a laptop or desktop with a side PC Card slot.
Non-Windows 2000 or XP hosts
AIR-CB21AG-A-K9 has Windows XP and Windows 2000 drivers. Endpoints outside those operating systems need another client adapter for the same client role.
External antenna connector
The CardBus model has an integrated 0-dBi dual-band diversity antenna. Systems that need a cabled 1-dBi antenna take AIR-PI21AG-A-K9 in a PCI slot.
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
| AIR-CB21AG-A-K9 |  AIR-PCM352 |  UCSC-M-V5Q50GV2 |  UCSC-PCIE-ID10GF |  UCSX-V4-Q25GML | |
|---|---|---|---|---|---|
| Adapter Type | Wireless Client Adapter | Wireless Client Adapter | Virtual Interface Card | Ethernet Adapter | Virtual Interface Card |
| Connector Type | Integrated Antenna | Integrated Antenna | SFP+ / SFP28 / SFP56 | SFP+ | Internal |
| Data Rate | 54M | 11M | 50G | 10G | 25G |
| Depth | 113.35 mm | 111 mm | 167.6 mm | 167 mm | 127.8 mm |
| Form Factor | CardBus | PC Card | mLOM | PCIe Card | mLOM |
| Height | 4.8 mm | 3 mm | 13.5 mm | 69 mm | 37.3 mm |
| Power Consumption | 3.3 V; 802.11a transmit 554 mA maximum / 802.11b transmit 539 mA maximum / 802.11g transmit 530 mA maximum / sleep 203 mA average | Transmit: 450 mA at 100 mW / Receive: 270 mA / Sleep: 15 mA | 27.4W maximum | 4.3W typical / 4.8W maximum dual-port 10GBASE-SR; 3.3W typical / 3.7W maximum dual-port direct attach | 24.8W maximum |
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Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
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AIR-CB21AG-A-K9 is the Cisco Aironet 802.11a/b/g Cardbus Adapter; FCC Cnfg and the CB21AG CardBus wireless LAN client adapter. The A segment is the FCC regional configuration, and the full code separates this orderable CardBus card from other regional and form-factor codes.
AIR-CB21AG-A-K9 fits a laptop or notebook with an external 32-bit CardBus slot and a 68-pin PC Card Rev. 7.0 interface. The endpoint must run Windows 2000 or Windows XP for the named drivers, and handheld PDAs are outside the RF exposure configuration.
AIR-CB21AG-A-K9 has a 54 Mbps 802.11a/b/g dual-band radio, a 32-bit CardBus host interface, 3.3 V operation and CardBus Type II form factor. The card measures 4.8 mm high, 52.08 mm wide and 113.35 mm deep, and it weighs 0.044 kg.
AIR-CB21AG-A-K9 has no wired port; the network path is the 802.11a/b/g radio. Radio rates are 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48 and 54 Mbps. The access point and regulatory domain must match the chosen band.
Each AIR-CB21AG-A-K9 card occupies one external 32-bit CardBus slot. The PC Card slot must be side mounted and maintain 1 cm separation from the antenna to the user or nearby person. The adapter cannot share a slot with another PC Card device.
AIR-CB21AG-A-K9 uses Windows 2000 or Windows XP drivers and the Cisco Aironet Desktop Utility for full profile control. The Aironet System Tray Utility provides status tasks. Windows XP can use Microsoft Wireless Configuration Manager, but ADU gives LEAP dynamic WEP and radio enable controls.
AIR-CB21AG-A-K9 uses an integrated 0-dBi dual-band 2.4/5-GHz diversity antenna. The antenna is permanently attached in the section that remains outside the CardBus slot. External antenna ordering is not part of this CardBus model, and thin laptop computers must keep 1 cm antenna separation.
AIR-CB21AG-A-K9 carries WPA and 802.1X authentication for LEAP, PEAP-GTC, PEAP-MSCHAPv2 and EAP-TLS. Encryption covers 40-bit WEP, 128-bit WEP, TKIP, key hashing, message integrity check and broadcast key rotation. The Aironet Desktop Utility exposes the broader security controls.
AIR-CB21AG-A-K9 is the FCC configuration. Regional CardBus order codes are AIR-CB21AG-E-K9 for ETSI, AIR-CB21AG-J-K9 for TELEC, AIR-CB21AG-P-K9 for Japan2 and AIR-CB21AG-W-K9 for Rest of World. AIR-CB21AG-A-K9-40 is the FCC 40-pack order code.
AIR-CB21AG-A-K9 uses a CardBus Type II slot for laptops and notebooks, while AIR-PI21AG-A-K9 uses a PCI slot for desktop computers. Choose AIR-CB21AG-A-K9 for a 32-bit CardBus endpoint, and use AIR-PI21AG-A-K9 when the endpoint has an empty PCI expansion slot.
Cisco stopped selling AIR-CB21AG-A-K9 as part of the CB21AG CardBus adapter line on 2 May 2013. Cisco service ended for the CB21AG line on 31 May 2018, and the Aironet Client Adapters line is retired.
Yes, ORM supplies AIR-CB21AG-A-K9 in new sealed and certified refurbished conditions. New sealed carries up to 3-year extended warranty, certified refurbished carries up to 1 year, and every condition carries 30-day returns; terms apply. Cisco service ended on 31 May 2018, so ORM's warranty is the cover that applies.
United States
