Western Digital Black SN850X 4 TB NVMe GEN4 M.2 7300 MBps (read) 6600 MBps (write) - WDS400T2X0E
Series: Black SN850X Capacity: 4 TB Format: M.2 BUS: NVMe GEN4 Read speed: 7300 MBps Write speed: 6600 MBps Random Read (4K): 1200000 IOPS Random Entry (4K): 1100000 IOPS Lifetime: 2400 TBW Technology: 3D TLC NAND
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| Product code | 225.164137 |
|---|---|
| Part number | WDS400T2X0E |
| EAN | 718037891378 |
| Manufacturer | Western Digital |
| Availability |
In stock 0 pc
Stock allocation and delivery options
Transport company across Europe Monday 8. 12. at the latest Friday 12. 12. |
| Supplier availability | In stock 37 pc |
| Warranty | 60 months |
| Weight | 0.09 kg |
| The price includes all legal fees | |
Detailed information
SSD
SSDs using SATA, SAS or NVMe interfaces are ideal for applications where the balance between read/write speed and affordability is important. They can be used, for example, as system disks, in database servers or IOPS-heavy hot-storage. In addition to its unrivalled speed, it offers, at a higher price, very low failure rates and higher reliability and resistance to vibration and temperature fluctuations. These drives are generally available in 2.5" format and they are therefore compatible with hot-swap slots designed for HDDs.
NVMe
NVM (non-volatile memory) Express is a newer interface designed to take maximum advantage of flash memory and to minimize the so-called “bottleneck”. It can take advantage of the super low latency and high data throughput when connected via the PCIe interface. This allows the theoretical throughput of up to 32 GB/s depending on the number of lanes and the PCI-express generation. They are available in a variety of formats, from the compact M.2 and 2.5" U.2, to the add-on card for PCIe.
Speed
For SSDs, speed is most commonly divided into sequential speed, which is given in MB/s, and random speed, which is given in IOPS. SSDs are many times faster than traditional hard drives and are rapidly approaching in price in recent years. They also have a much lower access time and they do not wear out the disk during the reading process as is the case with traditional rotating disks.
Lifespan
To determine the lifespan of the drive, TBW(TeraBytes Written) and PBW(PetaBytes Written) parameters are often given to indicate the total data written to the SSD before failure. The second most common designation is DWPD (Drive Writes per Day) indicating how many times per day the user can overwrite the entire capacity of the SSD for the duration of the warranty.
M.2
The M.2 format was created for modern SSDs both for operating system and fast data operation, but also for all-flash disk arrays that can sacrifice the hot-swap capability that M.2 drives do not offer. At the same time, however, it stands out for its small size as well as its lower price.
| General | |
| Capacity | 4 TB |
| Interface | Pcie® gen4 16gt/s, up to 4 lanes |
| NAND | Western Digital® TLC 3D NAND |
| Sequential Read | 7 300 MB/s |
| Sequential Write | 6 600 MB/s |
| Random Read | 1 200K IOPS |
| Random Write | 1 100K IOPS |
| Security | TCG OPAL V2.01 |
| Operating Temperature | 0°C to 85°C |
| Non-operating Temperature | -40°C TO 85°C |
Parameters
| Interface | PCI-E 4.0 4x |
|---|---|
| HDD type | M2 2280 |
| Capacity in GB | 4000 |
| Read speed | 7300 |
| Write speed | 6600 |
| DWPD |
