• TP-Link TL-WN881ND 300 Mbps
• Atheros AR9287
• MIMO 2×2:2
• PCI-X
• 2 external antennas
• wikidevi

lspci
01:00.0 0280: 168c:002e (rev 01)
01:00.0 Network controller: Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express) (rev 01)
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dmesg
[   11.597169] ath: EEPROM regdomain: 0x809c
[   11.597171] ath: EEPROM indicates we should expect a country code
[   11.597171] ath: doing EEPROM country->regdmn map search
[   11.597172] ath: country maps to regdmn code: 0x52
[   11.597173] ath: Country alpha2 being used: CN
[   11.597173] ath: Regpair used: 0x52