Total Bus Speed: 64 GT/s (PCIe 3.0 x8 bandwidth) Per Slot Speed: Up to 3,500 MB/s for each M.2 NVMe SSD Chipset: Advanced PLX8747 controller for stable data distribution Supports M.2 NVMe SSDs of all standard sizes: 2230/2242/2260/2280/22110 Works with for PCIe x8, x16 slots (backward compatible) Upgrade your system storage instantly with this 4-bay NVMe PCIe x8 expansion card. Featuring a plug-and-play design, it requires no motherboard bifurcation - simply install to unlock high-speed storage for up to four NVMe SSDs (The product printed words may vary depending on the batch, but this does not affect use) Color: As Shown Material: PCB Specification:B:Without module Package Contents: 1 x NVMe PCIe3.0 x8 Expansion Card Specification:A:With module Package Contents: 1 x NVMe PCIe3.0 x8 Expansion Card With module 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.