Long-term operation is stable and can work under wide temperature Product name: pc-e4x to U. 2sff-8639 Product interface: PCI-E 4X U. 2 SFF-8639 Support system: WIN7IN8I1032/64BIT/MAC/inux NVME SSD installation conditions: 1. PCI-E 4X 8X 16X 2.Please install WIN10 system, WIN7 needs to install the driver, the speed can be improved 3. A motherboard that does support the NVME protocol can be used as a system disk, only a storage disk motherboard chipset: The support of B350X370X399A320 is supported before, which means that NVME must be supported by RYZEN CPU motherboard. Hard disk end interface U. 2 (SFF-8639) 1: S-8639 is a solid-state or mechanical hard drive interface for 2.5-inch storage, which has PCI-ESATA/SAS signals 2: SF-8639 commission has 6 channels 4 channels (marked in red below) are exclusively for PC-e to connect directly to the CPU 2 channels (marked in blue below) are dedicated to SAS and SATA to connect HBA/RAID controller and chipset Colour:black Material:plastic Package Contents: 1 x U. 2 to PCI-e riser card. 2 PCI-E Adapter Card U. 2 Adapter Card SFF-8639" is in sale since Monday, January 4, 2021. This item is in the category "Computers/Tablets & Networking\Computer Cables & Connectors\Drive Cables & Adapters". The seller is "directimports1899" and is located in Shenzhen. This item can be shipped worldwide.