2 PCIe SSD Adapter, x8/x16 NVMe/AHCI, 3.0 SSD, Red. Item weight: 86 g. Dimensions: 16 x 1.5 x 6.9 cm. HIGH PERFORMANCE: Install 2 PCIe 3.0 M. 2 SSDs (NVMe or AHCI) into your workstation or server for read/write speeds up to 3GB/s and 2.8GB/s for single-drives or 2.4GB/s and 1.42GB/s (per drive) for 2. WIDE COMPATIBILITY: Dual M. 2 PCIe SSD adapter card was extensively tested to ensure compatibility w/ Samsung 970 evo, 950 Pro, SM951, & other 2242, 2260, 2280mm PCIe M-Key M. 2 NGFF SSDs (NVMe or AHCI). BACKWARD COMPATIBILITY: Compatible w/ PCIe 1.0 & 2.0 and x8 or x16 slots, PCIe bifurcation is not required. Works with all workstation and server OS’s such as Windows, Linux, and macOS incl. SOFTWARE RAID FUNCTIONALITY: M. 2 PCI Express adapter lets you use SSDs individually or in a storage pool using OS or 3rd party RAID software & supports RAID 0, 1, SPAN, JBOD for tiered/hybrid storage. VENTED DUAL-PROFILE BRACKETS: Pre-installed full profile bracket with low-profile (half-height) bracket in box & vented design for better cooling, avoiding drive throttling and improving reliability.