Features: brand new and high quality An extension card of the motherboard with 500 MB/s fast data transfer rate. Support SSD Size: for 2230 2242 2260 2280 four sizes. for M.2 Key-B for protection card, suitable for M.2 Sata disks; for M.2 Key-M for protection card, suitable for M.2 PCI-E NVME disks With gold-plated interfaces，anti-interference and wear-resistant. Support system: for M.2 system is available. Specifications: Size: approx 110x22mm/ 4.33x0.86in Material: PCB Product interface: for M.2 for KEY B / for M.2 for KEY for M (Optional) Weight: 60g Data Transfer Rate：500（MB/s） Support SSD Size: for 2230 2242 2260 2280 Support System: for M.2 system is available Package Includes: 1 PC x for M.2 Expansion Card note: Please confirm the motherboard for M.2 slot and for M.2 hard disk interface first, otherwise you will not be able to insert it. This is just an extension of the motherboard, it will not speed up or slow down. There may be slight size deviations due to manual measurement, different measuring methods and tools. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor.