Yes, but it only supports USB wifi Network Dongle manufactured with Realtek IC: RTl8188eu. Please see the list below for detailed makes and models:

TP-Link TL-WN722N V2/V3 150Mbps High Gain Wireless USB Adapter

TP-Link TL-WN727N V5.20 150Mbps Wireless N USB Adapter

TP-Link TL-WN725N V3 150Mbps Wireless N Nano USB Adapter

EDIMAX EW-7811Un V2 N150 Wi-Fi 4 Nano USB Adapter

ASUS USB-N10 Nano B1 USB Adapter Wireless-N

D-Link DWA-125 Wireless N 150 USB Adapter(rev.D)

D-Link DWA-123 Wireless N 150 USB Adapter(rev.D)

D-Link GO-USB-N150 Wireless N 150 Easy USB Adapter(rev.B)

D-Link DWA-121 Wireless N 150 USB Adapter(rev.B)

Realtek RTL8188EU Wireless LAN 802.11n USB 2.0 Network Adapter

Realtek RTL8188ETV Wireless LAN 802.11n USB 2.0 Network Adapter

802.11bgn Mini Wireless LAN USB2.0 Adapter

ELECOM WDC-150SU2M Wireless Adapter

Sitecom WLA-1100 V2 Wi-Fi USB adapter N150

MERCUSYS MW150US V2 N150 Wireless Nano USB Adapter

Rosewill RNX-N150NUB N150 Wireless Nano USB Adapter

If you cannot confirm the IC model used by the USB wifi Network Dongle, please confirm with the manufacturer of the USB wifi Network Dongle.

If you still have problems, please contact ATEN Tech Support

https://eservice.aten.com/eServiceCx/Common/FAQ/askQuestion.do?type=None