USB3.2 standard transmission, Transfer to 20Gbps, Backward compatible with USB3.1, USB3.0Compliant with PCI Express Base Specification Revision 3.1aAHCI 1.3.1 CompliantSupport the use of AHCI protocol hard drives on the marketCompliant with NVMExpress 1.4Support the use of NVME protocol hard disks on the marketSupport the use of NVME protocol for hard drives in 2015(The previous old hard drive enclosures not support nvme of hard drives)Supports PCIe 0 Gen 3x2, up to 16Gb/sSupports PCIe 1 Gen 3x2, up to 16Gb/sSupport UASP and TRIM instructions to the read and write speed of SSD hard drivesSupport following model:2013 for Pro A1493 A1502(MD864 MD865 MD293 MD294) SSD2013 for Pro Retina A1398 A1502(ME864 ME865 ME866 ME293 ME294) SSD2013 for Air A1465 A1466(MD711 MD712 MD760 MD761) SSD2014 for Air A1465 A1466(MD711 MD712 MD760 MD761) SSD2014 for Pro Retina A1502 A1398(MGX72 MGX82 MGX92 MGXA2 MGXC2) SSD2015 for Air A1465 A1466(MJVM2 MJVP2 MJVE2 MJVG2) and Pro ME253 MD878 SSD2016 for Air A1465 A14662017 for Air A1465 A1466Material: Aluminum alloycolour: BlackPackage Contents:1 x SSD Enclosure1 x Data Cable1 x Screwdriver(Screwdriver colors and styles are randomly distributed. Designation is not accepted)Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.