Supports for win ce5.0, ce6.0 , 2k, xp, vista, for win7, formac, for linux operating system. supports wireless roaming technology for high-efficient wireless connections. seamlessly compatible with 802.11b/g/n devices. specifications: item type: rt3072 300mbps wireless adapter material: abs+metal size: 70x19x9mm/2.7x0.7x0.3in color: white chipset: rt3072 antenna: built-in pcb antenna transmission rate: 300m voltage range: dc 5.0v±5% operation system: for windows ce5.0/ce6.0/2000/xp/vista/7; for linux 2.6.x; for macos x quantity: 1 pc note: no retail package. transition: 1cm=10mm=0.39inch please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. due to the difference between different monitors, the picture may not reflect the actual color of the item. thank you! package includes: 1 x