TXB128 SFF8639 Interface 4-port Nvme Adapter Card Solid State Drive to PCIE X16 to 4 U.2 Expansion Card •TXB128 is an internal PCIe (1 SFF-8643 144pin) PCI Express x16 forked riser card. PCI Express forking means splitting the PCI Express bus into smaller multi-slots. For example,a x16 PCI-Express port can be split into four x4 PCI-Express ports. This can be achieved from the motherboard BIOS if you want to split an existing channel •This adapter is designed for connecting high-performance 2.5" NVMe U.2 (SFF-8639) SSDs over SFF-8643 cables. U.2 SSDs can be loaded into backplates with SFF-8643 connectors that interface with the adapter,allowing U.2 SSD to be used like a drive cartridge •High-performance storage connections with four internal NVMe (SFF-8643) •Supports Intel-defined Mini SAS HD (SFF-8643) clock pin output •Supports 4 physical NVMe devices •This converter does not require a driver •Compatible with PCIe 3.0 and PCIe 2.0 motherboards •Supports low profile/low profile mounting brackets •Note: •The motherboard with CPU and BIOS needs to support bifurcation to ensure that the PCIe x16 link width reaches the bifurcated 4 x 4 NVMe SSD link width. If not,the TXB128 riser card only supports PCI x4 link width for a single NVMe device. Package included: •1 x Adapter Card