1. M.2 to PCIe 4X Adapter can convert the NGFF M.2 interface into PCI 4X interface.2. Floppy 4 pin power connector available for stable power supply.3. 2 Screw holes 22x60 / 22x80 available. Easy installation and no driver required.4. with LED Voltage indicator. Support data transmission up to 4.0GB/s.5. Support OS: Windows Vista / XP / 7 / 8, Linux, . Compatible with PCI-E 1X / 4X / 8X / 16X slot.Note: M.2 NGFF to PCI-E X4 riser card, use this riser card to convert M.2 NGFF interface to ordinary PCI-E X4 interface, there are 2 fixed holes on the board, 22 respectively x 60mm, 22 x 80mm, according to the length of the slot in your machine, it can be broken and positioned. It must be that after the break off, our company does not support returns, you must make that it can be used before breaking!Type: Cable AdapterType: NGFF M.2 M Key to PCI 4X AdapterProduct Name: NGFF M.2 to PCI-E 4X Riser CardFeatures: 3.3V 12V LED IndicatorPower Supply: 15Pin SATA Power CableCompatible: with 1X 4X PCIE SlotInterface: NGFF M2 to PCIE X4colour:WhiteMaterial:PC+metalsize:80 x 23mmPackage Contents:1 x M.2 to PCIe 4X Card1 x Screwdriver1 CableOnly the above package content, other products are not included.Note: Light 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.