In firmware versions older than 100307_2100_beta, only D-Link DWA 140 rev.B1 802.11n USB WiFi adapter was supported.
Starting with the firmware version 100307_2100_beta, Dune players do not impose any special restrictions on USB WiFi adapters that may be used, except the restrictions imposed by the included WiFi drivers. All USB WiFi adapters supported by the included WiFi drivers (see below) can be potentially connected to Dune, and have chances to work OK.
NOTE: It is not guaranteed that all of the listed below USB WiFi adapters will work OK with Dune (this has not been not tested, and there may be driver issues or hardware compatibility issues). The USB WiFi adapters known/reported to work OK with Dune are specially marked (see below).
USB WiFi adapters based on RALink RT2770/RT2870 chipset (for all Dune player models):
WiFi driver: RALink RT2870 version 2.3.0.0.
USB IDs recognized by the WiFi driver and Dune firmware:
0411:00e8 Buffalo WLI-UC-G300N
0471:200f Philips
04e8:2018 samsung linkstick2
050d:8053 Belkin
050d:805c
050d:815c
050d:815c Belkin F5D8053
0586:3416 Zyxel
0789:0162 Logitec 2870
0789:0163 Logitec 2870
0789:0164 Logitec 2870
07aa:002f Corega
07aa:003c Corega
07aa:003f Corega
07b8:2770 AboCom
07b8:2870 AboCom
--- 07d1:3c09 D-Link DWA-140 B1 --- REPORTED TO WORK OK (THE MOST TESTED ONE)
07d1:3c11 D-Link DWA-160
083a:6618 Accton
083a:7512 Arcadyan 2770
083a:7522 Arcadyan
083a:8522 Arcadyan
083a:a618 SMC
083a:b522 SMC
--- 0b05:1731 Asus WL-160N --- REPORTED TO WORK OK
0b05:1732 Asus
0b05:1742 Asus
0cde:0022 ZCOM
0cde:0025 Zyxel
0db0:6899
0df6:0017 Sitecom
0df6:002b Sitecom
0df6:002c Sitecom
0df6:002d Sitecom
0df6:0039 Sitecom 2770
0df6:003f Sitecom 2770
0e66:0001 Hawking
0e66:0003 Hawking
100d:9031 Motorola 2770
1044:800b Gigabyte
129b:1828 Siemens
13d3:3247 AzureWave
1482:3c09 Abocom
--- 148f:2770 Ralink = Trendnet TEW-644UB --- REPORTED TO WORK OK
--- 148f:2870 Ralink = Trendnet TEW-624UB --- REPORTED TO WORK OK
14b2:3c06 Conceptronic
14b2:3c07 AL
14b2:3c09 Alpha
14b2:3c23 Airlink
14b2:3c25 Draytek
14b2:3c27 Airlink
14b2:3c28 Conceptronic
157e:300e U-Media
15a9:0006 Sparklan
15c5:0008 Amit
1690:0740 Askey
1737:0070 Linksys WUSB100
1737:0071 Linksys WUSB600N
1740:9701 EnGenius
1740:9702 EnGenius
177f:0302 lsusb
2019:ed06 Planex Communications, Inc.
5a57:0280 Zinwell
5a57:0282 Zinwell
7392:7717
7392:7718
USB WiFi adapters based on RALink RT3070/3071/3072 chipset (only for Dune player models based on Sigma Designs 864x/865x platforms):
WiFi driver: RALink RT3070 version 2.1.2.0.
USB IDs recognized by the WiFi driver and Dune firmware:
04bb:0945 I-O DATA 3072
07b8:3070 AboCom 3070
07b8:3071 AboCom 3071
07b8:3072 Abocom 3072
--- 07d1:3c0a D-Link 3072 DWA-140 B2 --- REPORTED TO WORK OK
07d1:3c0d D-Link 3070
07d1:3c0e D-Link 3070
07d1:3c0f D-Link 3070
083a:7511 Arcadyan 3070
0db0:3820 Ralink 3070
0df6:003e Sitecom 3070
0df6:0042 Sitecom 3072
1044:800d Gigabyte GN-WB32L 3070
13d3:3273 AzureWave 3070
148f:3070 Ralink 3070
148f:3071 Ralink 3071
--- 148f:3072 Ralink 3072 = EDUP ED-300 --- REPORTED TO WORK OK
14b2:3c12 AL 3070
1740:9703 EnGenius 3070
1740:9705 EnGenius 3071
1740:9706 EnGenius 3072
18c5:0012 Corega 3070
1a32:0304 Quanta 3070
1d4d:000c Pegatron Corporation 3070
1d4d:000e Pegatron Corporation 3070
1eda:2310 AirTies 3070
2019:ab25 Planex Communications:Inc. RT3070
203d:1480 Encore 3070
5a57:0283 Zinwell 3072
5a57:5257 Zinwell 3070
7392:7711 Edimax 3070