Specifications: Model: PCENVME-N42 Output interface: PCI-E 4.0 NVME KEY-M Hard disk size: compatible with 2230,2242,2260,2280,22110 Interface speed: up to 6500-7200MB/S Supported slots: PCI-E 4X/8X/16X PCB color: black Material: PCB+ metal Support system: WIN10/11/LINUX Product size: 130 x 120 x 5.25mm Package Contents: 1 x M.2 adapter card 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. 3. With the channel of PCIe 4.0 X4, the speed will be enhanced up to 64 Gbps, 7000+ MB/s random Read and 6000+ MB/s Write (Max), (note: this is speed, need motherboard also support PCIE 4.0), This PCIE 4.0 adapter can improve computer performance, backward compatible with PCIe 1.0 2.0 3.0 5. No driver required for Win10, plug and play, supports NVMe SSD, such as 980 Pro / 970 /950Pro/960EVO/XP941/PM951/PM961/SM951/SM961, Firecuda 520 series, SSD6/7 M6e Series, NVMe 4.0, SN850 and so on Product features: 1. This adapter card uses 4-layer board differential pair routing and PCI-E4.0 connector to support PCI-E4.0 4X signal 4. 4-layer PCBA, Multi-layer protection: Overcurrent protection,Overvoltage protection,Short circuit protection, (Electromagnetic Interference) protection, Heatsink layer for overheat protection . Maximum protection of M.2 NVMe SSD from electrical signal interference. 2.With M.2 NVMe SSD PCI-E 4.0 X4 Adapter, you could add a NVME SSD on your motherboard without M.2 slot