Transcend's PCIe SSD 220S aims at high-end applications, such as digital audio/video production, gaming, and enterprise use, which require constant processing heavy workloads with no system lags or slowdowns of any kind. Utilizing the PCI Express® Gen3 x4 interface supported by the latest NVMe™ standard, 3D NAND flash memory, and a DRAM cache, the PCIe SSD 220S offers supreme transfer speeds that override others.Transcend's PCIe SSD 220S follows NVMe 1.3 and utilizes the PCIe™ Gen3 x4 interface, meaning four lanes are used for transmitting and receiving data simultaneously, resulting in compelling performance of up to 3,500MB/s read and 2,800MB/s write.PCIe (or PCI Express®) is a much faster interface than SATA (or Serial ATA) for connecting a host computer to solid-state storage devices over one or more lanes consisting of one transmit and one receive serial interface in each lane, meaning it can better fulfill new performance requirements.NVMe (or NVM Express®) is a host controller interface standard designed to address the needs of enterprise and client applications that utilize PCI Express-based solid-state storage. NVMe calls for better performance vectors than AHCI (Advanced Host Controller Interface), including scalable bandwidth, increased IOPS, and low latency. Specification: Key Features Capacity 1TB Form Factor M.2 2280 Flash Type 3D NAND flash Interface SATA III 6Gb/s Sequential R/W Read Speed (Max.) 3,500 MB/s Write Speed (Max.) 2,800 MB/s Physical Specification Dimension (L x W x H) 100 mm x 69.85 mm x 6.8 mm (3.94" x 2.75" x 0.28") Weight 8 g (0.28 oz) Temperature Operating Temperature 0°C (32°F) ~ 70°C (158°F) Warranty Manufacturing Warranty 05 years warranty ..