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Rectangular 2.5 inch internal SSD with black metal casing and silver label showing 840 Pro Series 256GB

SAMSUNG Refurbished

SAMSUNG MZ-7TD256D 840 Pro Series 2.5" 256GB SATA internal SSD

SKU CH-0M23-MYVS5 MPN MZ-7TD256D

Refurbished 2.5" SATA internal SSD with 256GB MLC storage for consumer systems

  • Total capacity256 GB
  • Interface typeSATA III
  • Form factor2.5 in (6.35 cm)
  • Product typeInternal Solid State Drive (SSD)
  • Intended useConsumer
  • NAND flash typeMLC
  • MLC memory boosts endurance for heavy write workloads
  • SATA III interface delivers up to 6 Gbps transfer speeds
  • 256 GB capacity stores OS, apps and large files
  • 5 inch 7.00 mm form factor fits standard laptop and desktop bays
  • 840 Pro series launched in 2018 offers proven reliability

Samsung 840 Pro 256GB SATA SSD

This refurbished 2.5-inch internal drive delivers 256GB of MLC flash storage over a SATA III link. It is built for consumer desktops and laptops that accept a 7.00mm SATA device. The 840 Pro series targets everyday computing workloads.

Suits SATA-only upgrades; not for PCIe slots

Buyers with motherboards that provide only SATA ports will find this drive a direct fit. Systems that require a PCIe or M.2 keyed interface cannot use this 2.5-inch form factor. Shoppers needing more than 256GB of capacity should consider larger drives.

256GB MLC capacity decides fit

The 256GB MLC capacity determines whether the drive holds the intended operating system, applications and data set. Users with larger media libraries or multiple virtual machines will need a higher-capacity model. The SATA III interface and 7.00mm height are fixed by the design.

How it compares

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

Price $115.99
Cheaper than about 68% 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).
Price per TB $453.09 per TB
Pricier than about 85% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameSAMSUNG
Product line840 Pro Series
Part numberMZ-7TD256D
Total capacity256 GB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Storage
NAND flash typeMLC
Ports & slots
Interface typeSATA III
Size & build
Form factor2.5 in (6.35 cm)
Overall height7 mm
Shipping weight0.05 kg
Package size99 × 74 × 8 mm

Questions about this item

How is the 2.5" SATA III drive installed in a laptop or desktop?

Connect the 7.00mm high drive to a SATA III port using a standard data cable and power connector, then secure it with the four mounting screws; the step often missed is forgetting to enable AHCI mode in the BIOS before cloning the OS.

What maintenance or replacement will the MLC NAND require over time?

The MLC memory cells have a finite write endurance; once the reserved spare blocks are exhausted the drive will switch to read-only mode, so plan to replace the 256GB unit when SMART attributes report critical wear.

What limit appears first during sustained heavy writes on this 840 Pro Series SSD?

The SATA III interface caps sequential throughput at roughly 6 Gbit/s, so the controller hits that bus ceiling before the MLC flash reaches its own speed ceiling during long transfers.

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