Convert 4x M.2 NVMe SSDs (2280) into a 40Gbps external RAID array,Dedicated PCIe 4.0 x4 lanes per SSD (up to 1600MB/s each), for Thunderbolt 4/USB4 & backward compatible with TB3 Professional RAID Flexibility Supports RAID 0/1/5/10 + JBOD modes Compact Workstation Design Pro Tip: For maximum performance, Ensure your SSDs are PCIe NVMe for optimal performance.Not compatible with SATA SSDs. When multiple hard drives operate simultaneously for extended periods, significant heat buildup will occur. Due to the aluminum alloy enclosure design, heat is directly ferred to the surface, which may become extremely hot to the touch model:Four-bay USB4 hard drive enclosure protocol:Single drive PCIE4.0X1 master control:ASM2464PDX master control compatible:Fully compatible with for Thunderbolt 4/3, USB4/3.2/3.1/3.0/2.0 SSD:Please purchase a 2280 NVMe M.2 Mkey SSD (The product appearance and printed words may vary depending on the batch, but this does not affect use) Color: As Shown Material: Aluminum Alloy Package Contents: 1 x 4-Bay M.2 NVMe SSD Only the above package content, other products are not included. Note: Light reflection 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.