1. This riser card uses differential wire pair routing and supports PCIE 3.0 4X signals.2. M.2 NGFF to PCIE X4 adapter card, use this adapter card to convert PCIE X4 interface to M.2 NGFF interface and connect to the motherboard through a SATA cable, which can be connected to the SSD of the SATA protocol. There are 5 fixed holes on it, which are 22x32mm, 22x42mm, 22x60mm, 22x80mm, 22x110mm.3. The following slots: Support M.2 of NVME protocol for PM961, 960EVO, SM961, PM951, sm951, 600P, T10, etc. M.2 of the SATA protocol is not supported. The upper slot: Support SATA protocol M.2 KEYBM4. Equipped with metal baffle to make the riser card firm and stable5. Plug and play, simple operation and easy to useProduct name: PCIE 4X to M.2 Key M+B dual interface adapter cardProduct model: PCENGFFN03Product interface: PCIE 1X PCIE 4XData transmission speed: 10000 (MB/s)Support system: compatible with WIN7/WIN8/WIN8.1/WIN10 systemcolour:BlackMaterial:PCB+metalsize:Bezel: 12cmPackage Contents:1 x Adapter card1 x SATA3.0 data 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 +/ 13cm.