2022
Black SN850X 2TB
WD旗舰游戏导向PCIe 4.0 NVMe固态硬盘。SN850X在SN850基础上改进了游戏模式固件和主控，在DirectStorage工作负载中降低了延迟。官方推荐用于PS5。
NVMe SSD
兼容标准与组件
PCI Express 4.0 (PCIe 4.0)
PCI Special Interest Group (PCI-SIG)
M.2 2280 Form Factor
PCI Special Interest Group (PCI-SIG) / JEDEC
PCI Express 3.0 (PCIe 3.0)
PCI Special Interest Group (PCI-SIG)
M.2 2230 Form Factor
PCI-SIG / JEDEC
3D TLC NAND Flash
Samsung / SK Hynix / Micron / Kioxia
3D QLC NAND Flash
Intel / Micron / Samsung / SK Hynix
SLC Write Cache (Dynamic NAND Cache)
Storage Device Manufacturers
M.2 NVMe Heatsink (Thermal Throttle Prevention)
Motherboard Manufacturers
2.5-inch SATA SSD Form Factor
SATA-IO
技术规格
| Type | NVMe SSD |
| Capacity | 2 TB |
| Interface | PCIe 4.0 x4 / NVMe 1.4 |
| Form Factor | M.2 2280 |
| Controller | WD in-house |
| Nand Type | SanDisk 3-bit TLC |
| Dram | Yes |
| Seq Read | 7,300 MB/s |
| Seq Write | 6,600 MB/s |
| Rand Read | 1,200K IOPS |
| Rand Write | 1,100K IOPS |
| Tbw | 1,200 TBW |
| Warranty | 5 years |
| Notes | Gaming-optimised firmware, optional heatsink model available |
| Msrp | $139.99 |
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