The adapter card only support 22x80mm size of M.2 NGFF PCIe x4 AHCI SSD, it can not support M.2 NGFF PCIe x4 NVMe solid state drives.The speed and other properties is not changed, only form conversion interface.No need extra power adapter and any drivers.Item Name: Adapter CardSupported Computer Models:2013 Version for MacBook Pro Retina A1398 A1502 (ME864 ME865 ME866 ME293 ME294)2014 Version for MacBook Pro Retina A1502 A1398 (MGX72 MGX82 MGX92 MGXA2 MGXC2)2015 Version for MacBook Pro Retina A1502 A1398 (MF839 MF840 MF841 MJLU2 MJLT2 MJLQ2)2013-2014 Version for MacBook Air A1465 A1466 (MD711 MD712 MD760 MD761)2015 Version for MacBook Air A1465 A1466 (MJVM2 MJVP2 MJVE2 MJVG2)2017 Version for MacBook Air A1466 (MQD32 MQD42 MQD52, Model A1466 EMC3178)for Mac Pro ME253 MD878, 2013 2014 2015 2016 2017 for iMAC A14192014 for Mac Mini A13472013 for iMAC A1418 (EMC: 2638) & 2017 for iMAC A1418 (EMC: 3069) (Must Improve for Fusion Drive Firstly)Supported M.2 (NGFF) PCIE-AHCI SSD:for Samsung XP941 (MZHPU128HCGM MZHPU256HCGL MZHPU512HCGL)for Samsung SM951 PCIE-AHCI (MZHPV128HDGM MZHPV256HDGL MZHPV512HDGL)for Kingston SHPM2280P2/240G/480GLatest for Max OS Support NGFF PCIe SSD:for SM951 PCIE-NVME (MZVPV128HDGM MZVPV256HDGL MZVPV512HDGL)for PM951 PCIE-NVME (MZFLV128HCGR MZFLV256HCHP MZFLV512HCJH)for 950 Pro (MZVKV256 MZVKV512) and Other PCIE-NVMe SSDFeatures: Portable, Fine Workmanship, DurableSize: 6cm x 4cm x 2cm/2.36" x 1.57" x 0.79" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Adapter Card