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TP-LINK TL-WN821N v4

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TP-LINK TL-WN821N v4
Availability: common

FCC approval date: 21 December 2012
EAN: 6935364090067 (UPC DB, On eBay)
Country of manuf.: China

Amazon image

ASIN
B002T4D3M2 (Flag of the United States.svg, On Amazon, On CCCmultiple uses)
multiple revisions of this device, use caution

Interface: USB

USB 2.0
Connector: Male A
Form factor tags: dongle

ID: 0bda:8178 (7 addl. devices)
Windows: USB\VID_0BDA&PID_8178

FCC ID: TE7WN821NV4

WI1 chip1: Realtek RTL8192CU

Windows driver
possibly see Realtek's website, but the majority of legacy drivers have been removed
know a better source? LMK

Antenna connector: none

bgn, 2x2:2

OUI: E8:DE:27 (2 E, 2 W, 2012)

For a list of all currently documented Realtek chipsets with specifications, see Realtek.



300Mbps Wireless N USB Adapter

Product page  • Support page
  • "Rev:1.0" and "2052500371" appears to be silkscreened
on the bottom side of the board in the FCC photos.
  • "Rev:1.1", "2052500381", and "GFM0120008" appears silkscreened
on the bottom side of the board with serial "12C71900408".

Technical info[edit]

(on Ubuntu 14.04 LTS, Linux kernel 3.13)

iw phy0 info
Wiphy phy0
	Band 1:
		Capabilities: 0x1862
			HT20/HT40
			Static SM Power Save
			RX HT20 SGI
			RX HT40 SGI
			No RX STBC
			Max AMSDU length: 7935 bytes
			DSSS/CCK HT40
		Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
		Minimum RX AMPDU time spacing: 16 usec (0x07)
		HT TX/RX MCS rate indexes supported: 0-15, 32
		Frequencies:
			* 2412 MHz [1] (20.0 dBm)
			* 2417 MHz [2] (20.0 dBm)
			* 2422 MHz [3] (20.0 dBm)
			* 2427 MHz [4] (20.0 dBm)
			* 2432 MHz [5] (20.0 dBm)
			* 2437 MHz [6] (20.0 dBm)
			* 2442 MHz [7] (20.0 dBm)
			* 2447 MHz [8] (20.0 dBm)
			* 2452 MHz [9] (20.0 dBm)
			* 2457 MHz [10] (20.0 dBm)
			* 2462 MHz [11] (20.0 dBm)
			* 2467 MHz [12] (disabled)
			* 2472 MHz [13] (disabled)
			* 2484 MHz [14] (disabled)
		Bitrates (non-HT):
			* 1.0 Mbps
			* 2.0 Mbps
			* 5.5 Mbps
			* 11.0 Mbps
			* 6.0 Mbps
			* 9.0 Mbps
			* 12.0 Mbps
			* 18.0 Mbps
			* 24.0 Mbps
			* 36.0 Mbps
			* 48.0 Mbps
			* 54.0 Mbps
	max # scan SSIDs: 4
	max scan IEs length: 2257 bytes
	RTS threshold: 2347
	Coverage class: 0 (up to 0m)
	Supported Ciphers:
		* WEP40 (00-0f-ac:1)
		* WEP104 (00-0f-ac:5)
		* TKIP (00-0f-ac:2)
		* CCMP (00-0f-ac:4)
		* CMAC (00-0f-ac:6)
	Available Antennas: TX 0 RX 0
	Supported interface modes:
		 * IBSS
		 * managed
		 * AP
		 * AP/VLAN
		 * monitor
		 * mesh point
		 * P2P-client
		 * P2P-GO
	software interface modes (can always be added):
		 * AP/VLAN
		 * monitor
	interface combinations are not supported
	Supported commands:
		 * new_interface
		 * set_interface
		 * new_key
		 * new_beacon
		 * new_station
		 * new_mpath
		 * set_mesh_params
		 * set_bss
		 * authenticate
		 * associate
		 * deauthenticate
		 * disassociate
		 * join_ibss
		 * join_mesh
		 * set_tx_bitrate_mask
		 * action
		 * frame_wait_cancel
		 * set_wiphy_netns
		 * set_channel
		 * set_wds_peer
		 * Unknown command (84)
		 * Unknown command (87)
		 * Unknown command (85)
		 * Unknown command (89)
		 * Unknown command (92)
		 * connect
		 * disconnect
	Supported TX frame types:
		 * IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * mesh point: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * Unknown mode (10): 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
	Supported RX frame types:
		 * IBSS: 0x40 0xb0 0xc0 0xd0
		 * managed: 0x40 0xd0
		 * AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
		 * AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
		 * mesh point: 0xb0 0xc0 0xd0
		 * P2P-client: 0x40 0xd0
		 * P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
		 * Unknown mode (10): 0x40 0xd0
	Device supports RSN-IBSS.
	HT Capability overrides:
		 * MCS: ff ff ff ff ff ff ff ff ff ff
		 * maximum A-MSDU length
		 * supported channel width
		 * short GI for 40 MHz
		 * max A-MPDU length exponent
		 * min MPDU start spacing
	Device supports TX status socket option.
	Device supports HT-IBSS.

dmesg

[15544.200093] usb 3-1: new high-speed USB device number 5 using xhci_hcd
[15544.217529] usb 3-1: New USB device found, idVendor=0bda, idProduct=8178
[15544.217536] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[15544.217540] usb 3-1: Product: USB WLAN
[15544.217542] usb 3-1: Manufacturer: 802.11n
[15544.217545] usb 3-1: SerialNumber: xxxxxxxxxxxx
[15544.259463] rtl8192cu: Chip version 0x11
[15544.295146] rtl8192cu: MAC address: e8:de:27:xx:xx:xx
[15544.295154] rtl8192cu: Board Type 0
[15544.295223] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1
[15544.295281] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin
[15544.295453] usbcore: registered new interface driver rtl8192cu
[15544.296228] ieee80211 phy1: Selected rate control algorithm 'rtl_rc'
[15544.296884] rtlwifi: wireless switch is on