Mini PCIe to PCIe Express Adapter + 3 WiFi Antenna Item Name: MPCE to PCIE Adapter Antenna Size: 4 1/4 x 3/8"; Card Size: 4 3/4 x 3 1/8 x 3/4" Supports all of PCIe Mini-Cards such as SSD, WLAN,WWLAN, Mini Card to desktop PC; Supports U.FL/IPX to RP- SMA pigtail WiFi RF cable adapter Support DOS, Windows 98/2000/XP/Server 2003/XP/Vista/7, Linux OS, Mac OS Package Content: 1 x MPCIE to PCIE Adapter + 3 Antennas