PCIe SSD 220S 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, an 8-channel controller, and a DRAM cache, the PCIe SSD 220S offers supreme transfer speeds that override others. Supreme transfer speeds 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. Its 8-channel controller supports ultra high data throughput, resulting in compelling performance of up to 3,500MB/s read and 2,700MB/s write. Understanding the PCIe interface 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. Understanding the NVMe standard 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. 3D expansion to break through limits Unlike planar NAND memory, 3D NAND flash features memory cells stacked vertically in multiple layers. 3D NAND overcomes density limitations of 2D planar NAND, and delivers a higher level of performance and endurance. Better endurance, higher reliability Transcend's PCIe SSD 220S is engineered with LDPC (Low-Density Parity Check) coding, a powerful ECC algorithm, to keep data secure. Manufactured with high-quality 3D NAND flash chips, and engineered dynamic thermal throttling mechanism, the PCIe SSD 220S guarantees superior endurance and stability for high-end applications. SSD Scope software Transcend SSD Scope is advanced, user-friendly software that makes it easy to ensure your Transcend SSD remains healthy, and continues to run fast and error-free by determining the condition and optimizing the performance of your drive. Guaranteed quality To ensure the utmost level of quality, Transcend SSDs undergo rigorous testing at all stages of production, including tests for vibration, temperature and humidity, speed, and functionality. Specifications: Appearance Dimensions80 mm x 22 mm x 3.58 mm (3.15" x 0.87" x 0.14") Weight8 g (0.28 oz) Interface Bus InterfaceNVMe PCIe Gen3 x4 Storage Flash Type3D NAND flash Capacity256 GB/512 GB/1 TB/2 TB/ Operating Environment Operating Temperature0°C (32°F) ~ 70°C (158°F) Operating Voltage3.3V±5% Performance Sequential Read/Write (CrystalDiskMark) 2 TB3,500/2,700 MB/s 1 TB3,400/1,900 MB/s 512 GB3,300/2,100 MB/s 256 GB3,300/1,100 MB/s 4K Random Read/Write (IOmeter) 2 TB340,000/310,000 IOPS 1 TB300,000/340,000 IOPS 512 GB210,000/310,000 IOPS 256 GB210,000/290,000 IOPS Terabytes Written (TBW) 2 TB4,400 TBW 1 TB2,200 TBW 512 GB1,100 TBW 256 GB550 TBW Mean Time Between Failures (MTBF)2,000,000 hour(s) Drive Writes Per Day (DWPD)2.4 (5 yrs) NoteSpeed may vary due to host hardware, software, usage, and storage capacity.The workload used to rate DWPD may be different from your actual workload, which may vary due to host hardware, software, usage, and storage capacity.Some motherboards only provide PCIe x2 connections for the M.2 slot, creating a bottleneck on even the fastest drives. Warranty CertificateCE/FCC/BSMI/ WarrantyFive-year Limited Warranty Warranty PolicyPlease click here for more information about the Transcend Warranty Policy.Warranty does not apply when SSD Scope's wear-out indicator displays 0% within the warranty coverage. System Requirement Operating SystemMicrosoft Windows 7 (additional driver required)Microsoft Windows 8 (additional driver required)Microsoft Windows 10Linux Kernel 2.6.31 or later NoteSystems for use with the PCIe M.2 SSD must have an M.2 connector with only an M key. B-key connectors are not compatible. Improper insertion may lead to damage. Please click here for more information. Technology S.M.A.R.T.Yes DDR3 DRAM CacheYes Advanced Garbage CollectionYes RAID EngineYes LDPC CodingYes