VAlinks 1080P Mini DisplayPort Mini DP Thunderbolt Male to VGA Female Adapter Multi Monitor External Graphics Video Card for MacBook, MacBook Air, MacBook Pro, iMac, Mac Mini Compatible with MacBook, MacBook Air, MacBook Pro, iMac, Mac Mini, & Mac Pro desktops and also the 24-inch Apple Cinema Display and Lenovo ThinkPad X1 Length: 8in (20.32cm), use with VGA cable (sold separately) to connect external displays Support Mini DisplayPort 1.1a compliant receiver offering 5.4 Gbps bandwidth over 2 lanes Powered from Mini DisplayPort source, no external power needed Supports resolution up to 1920 x 1200 (1080P) @ 60Hz, 480i / 480p, 576p, 720p, 1080i/1080p