We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green rectangular M.2 2280 SSD with black label and gold connectors

SanDisk

SanDisk SD8SN8U-512G-1122 X400 512GB M.2 2280 SATA internal SSD

SKU CH-PN6Y-6PF00 MPN SD8SN8U-512G-1122

512 GB M.2 2280 SATA SSD with 540 MB/s reads, 520 MB/s writes and 1.75 million-hour MTTF for enterprise workloads

  • Total capacity512 GB
  • Sequential read speedUp to 540 MB/s
  • Sequential write speedUp to 520 MB/s
  • Interface typeSATA III
  • Form factorM.2 2280
  • Product typeInternal Solid State Drive (SSD)

Model 512GB M.2

  • Up to 540 MB/s sequential read for fast boot and load times
  • Up to 520 MB/s sequential write for quick file saves and transfers
  • 93,500 random read IOPS and 75,000 random write IOPS for responsive multitasking
  • 5 mm single-sided M.2 2280 fits ultra-thin laptops and compact desktops
  • 75 million hours MTTF and 320 TBW endurance for long-term reliability

SATA III M.2 2280 512GB SSD

The SanDisk X400 SD8SN8U-512G-1122 is a 512GB internal solid state drive built for enterprise workloads. It uses a M.2 2280 form factor with a SATA III interface and sixth-generation TLC flash memory. Sequential reads reach up to 540 MBps and writes up to 520 MBps. The drive measures 1.5mm in height for slim system compatibility.

Enterprise workloads and thin systems

This drive suits users running heavy workloads such as photo and video editing, multitasking or office productivity in ultrathin designs. It offers endurance up to 320 TBW with nCache 2.0, DataGuard client and LDPC error correction for data integrity. Buyers needing a 2.5 inch 7mm drive should select that form factor instead.

SATA III interface

The single specification that decides fit is the SATA III interface, which limits throughput to the SATA bus rather than PCIe lanes. Verify the host system provides a SATA-wired M.2 slot before purchase. Operating temperature ranges from 0°C to 70°C with shock resistance rated at 1500G.

How it compares

Measured against everything we stock in Internal NVMe & SATA SSDs, at today’s prices. Recalculated every night.

Price $134.99
Cheaper than about 62% of the 1,994 comparable items (median $180.49).
Total capacity 512 GB
Lower than about 60% of the 1,368 comparable items (median 1 TB).
Sequential read speed Up to 540 MB/s
Lower than about 83% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $263.65 per TB
Pricier than about 72% of the 1,362 comparable items (median $165.50 per TB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSanDisk
Product lineX400
Model nameSD8SN8U-512G-1122
Total capacity512 GB
Product typeInternal Solid State Drive (SSD)
Intended useEnterprise
Performance
Sequential read speedUp to 540 MB/s
Sequential write speedUp to 520 MB/s
Random read (4K)Up to 93,500 IOPS
Random write (4K)Up to 75,000 IOPS
Storage
NAND flash typeTLC
Ports & slots
Interface typeSATA III
Size & build
Form factorM.2 2280
Overall height1.5 mm
Overall width22 mm
Product depth80 mm
Product weight7g
Shipping weight0.03 kg
Package size109 × 64 × 8 mm
Environment & compliance
Operating temperature range0 °C to 70 °C
Storage temperature range-55 °C to 85 °C
Max shock tolerance1500G
Vibration toleranceOperating: 5.0 gRMS, 10–2000 Hz
Non-operating: 4.9 gRMS, 7–800 Hz
More details
Mean time to failureUp to 1.75M hours

Other versions of this model

3 more in the same range

Questions about this item

Will the 1.5mm single-sided M.2 2280 module fit my laptop's M.2 slot?

Yes, the drive uses the standard M.2 2280 form factor with a 1.5mm single-sided profile, so it fits any M.2 2280 slot that accepts SATA signalling.

What is the correct way to secure the drive after inserting it into the M.2 slot?

Insert the drive at an angle, press it flat, and fasten the single retention screw; the step often missed is fully tightening that screw so the drive stays seated under vibration.

How many terabytes can be written before the TLC NAND reaches its rated endurance?

The drive is rated for up to 320 TBW, which represents the total host writes the TLC memory is warranted to sustain.

More in Internal NVMe & SATA SSDs

Similar items