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
Rectangular silver 2.5 inch SSD with label, SATA connectors visible

SAMSUNG Refurbished

SAMSUNG SDSM850PRO-256P 256GB 2.5" SATA internal SSD

SKU CH-PCZQ-864ZB MPN SDSM850PRO-256P

A 2.5 inch SATA internal SSD holding 256GB with 3D V-NAND, up to 550 MBps read and 520 MBps write, plus 2,000,000 hours MTBF

  • Total capacity256 GB
  • Sequential read speedUp to 550 MB/s
  • Sequential write speedUp to 520 MB/s
  • Interface typeSATA III
  • Form factor2.5 in (6.35 cm)
  • Product typeInternal Solid State Drive (SSD)
  • Fast boot and load times with up to 550 MBps sequential read
  • Responsive multitasking from up to 100000 IOPS random read
  • Long service life backed by 2000000 hours MTBF
  • Low power draw at 0.5W idle and 3.5W active
  • Proven 3D V-NAND technology in a 2.5 inch SATA drive

Samsung 850 PRO 256 GB SATA III SSD

This refurbished Samsung 850 PRO is a 2.5 inch internal solid state drive with 256 GB capacity. It connects through a SATA III interface and uses 3-D Vertical NAND memory with a Samsung MEX controller. Sequential reads reach up to 550 MBps and writes up to 520 MBps. Random performance hits 100000 IOPS read and 90000 IOPS write.

Suits 2.5 inch SATA bays in laptops and desktops

The 7 mm height fits standard drive bays in notebooks and desktop PCs that accept a 2.5 inch SATA device. It draws 0.5 W idle and 3.5 W active, so it works within typical laptop power budgets. Buyers needing an M.2 form factor or a PCIe interface should choose a different model.

MTBF rated at 2000000 hours

The manufacturer specifies a mean time between failures of 2000000 hours, indicating high endurance for a consumer drive. This figure helps assess whether the SSD meets reliability requirements for long-term workloads. Operating temperature range is 0 °C to 70 °C and humidity tolerance is 0 % to 95 %.

How it compares

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

Price $107.99
Cheaper than about 70% of the 1,994 comparable items (median $180.49).
Total capacity 256 GB
Lower than about 80% of the 1,368 comparable items (median 1 TB).
Sequential read speed Up to 550 MB/s
Lower than about 70% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $421.84 per TB
Pricier than about 83% 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 nameSAMSUNG
Product line850 PRO
Model nameMZ-7KE256BW
Total capacity256 GB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 550 MB/s
Sequential write speedUp to 520 MB/s
Random read (4K)Up to 100,000 IOPS
Random write (4K)Up to 90,000 IOPS
Storage
NAND flash type3-D Vertical
Controller chipSamsung MEX Controller
Ports & slots
Interface typeSATA III
Power
Idle power draw0.5 W
Active power draw3.5 W
Size & build
Form factor2.5 in (6.35 cm)
Overall height7 mm
Overall width70.1 mm
Product depth100.08 mm
Product weight0.14 lb (0.06 kg)
Shipping weight0.13 kg
Package size191 × 165 × 102 mm
Environment & compliance
Operating temperature range0 °C to 70 °C
Operating humidity range0% to 95%
More details
Mean time between failures2,000,000 h

Questions about this item

How can I confirm the drive is performing at its rated 550 MBps sequential read after installation?

Run a benchmark tool such as CrystalDiskMark and verify the sequential read result is near 550 MBps and sequential write near 520 MBps; also check SMART data shows the drive detected as a SATA III device with 256GB capacity.

What comes in the box and what must I supply myself?

The package contains the 2.5 inch 256GB SSD only; you will need to provide a SATA data cable, a SATA power connection from your power supply, and a 2.5 inch drive bay or adapter bracket for mounting.

Which capacity in the 850 PRO series should I choose for a boot drive with room for key applications?

The 256GB model offers 256GB of 3D V-NAND storage with up to 100,000 random read IOPS and 90,000 random write IOPS, making it well suited for an OS plus core programs; larger capacities in the same series provide more space but share the same performance profile.

More in Internal NVMe & SATA SSDs

Similar items