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Black rectangular 2.5 inch SSD with silver label and circuit board visible on underside

SAMSUNG

SAMSUNG 840 EVO 250GB 2.5" SATA internal SSD MZ-7TE250BW

SKU CH-K0WN-G3FPE MPN MZ-7TE250BW

A 250GB 2.5" SATA solid-state drive delivering 540MB/s read and 520MB/s write speeds with 512MB DRAM cache and AES 256-bit encryption

  • Total capacity250 GB
  • Interface typeSATA 6Gb/s
  • Form factor2.5 in (6.35 cm)
  • Product typeInternal Solid State Drive (SSD)
  • Intended useConsumer
  • NAND flash type1x nm Samsung Toggle DDR 2.0 3-Bit MLC NAND Flash Memory (40

Capacity 250GB

  • Fast boot and load times from 540MB/s sequential read
  • Responsive multitasking backed by 97,000 IOPS random read
  • Smooth write performance at 520MB/s sequential and 66,000 IOPS random
  • Data protected by AES 256-bit full-disk encryption
  • Low power draw of 0.14W idle and 0.24W active

Samsung 840 EVO 250GB SATA SSD

The Samsung 840 EVO is a 2.5 inch internal solid state drive with a 250GB capacity. It uses a SATA 6Gb/s interface and a Samsung 3-core MEX controller with 512MB DRAM cache. Sequential read reaches 540MB/s and write reaches 520MBps. It is built for consumer workloads.

Check SATA port and bay before ordering

Verify that your motherboard or laptop has a free SATA 6Gb/s port and a 2.5 inch drive bay or suitable adapter. The drive draws 0.14W idle and 0.24W active, so a standard SATA power connector is sufficient. Ensure your BIOS or OS supports TRIM and S.M.A.R.T for full feature use.

6.8mm metal case with standard connectors

The drive measures 6.8mm high, 69.85mm wide and 100.08mm deep, weighing 0.12 lb. Its metal enclosure fits typical 2.5 inch caddies and uses standard SATA data and power connectors. AES 256-bit full disk encryption and an LED indicator are supported. Operating temperature range is 0°C to 70°C.

How it compares

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

Price $221.99
Pricier than about 58% of the 1,994 comparable items (median $180.49).
Total capacity 250 GB
Lower than about 84% of the 1,368 comparable items (median 1 TB).
Price per TB $887.96 per TB
Pricier than about 90% 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 line840 EVO
Model nameMZ-7TE250BW
Total capacity250 GB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sustained sequential read rate540 MB/s
Sustained sequential write rate520 MB/s
Random read (4K)Up to 97,000 IOPS
Random write (4K)Up to 66,000 IOPS
Storage
NAND flash type1x nm Samsung Toggle DDR 2.0 3-Bit MLC NAND Flash Memory (400 Mbit/s)
Controller chipSamsung 3-core MEX Controller
Cache memory512 MB DRAM
Ports & slots
Interface typeSATA 6Gb/s
Power
Idle power draw0.14 W
Active power draw0.24 W
Size & build
Form factor2.5 in (6.35 cm)
Overall height6.8 mm
Overall width69.85 mm
Product depth100.08 mm
Product weight0.12 lb (0.05 kg)
Shipping weight0.12 kg
Package size145 × 141 × 18 mm
Environment & compliance
Operating temperature range0 °C to 70 °C
Storage temperature range-55 °C to 95 °C
Operating humidity range5% to 95%, non-condensing
More details
Mean time between failures1,500,000 h

Other versions of this model

3 more in the same range

Questions about this item

Does the 2.5 inch SATA 6Gb/s drive come with a mounting bracket or cloning software, or must I buy them separately?

The drive ships as the bare 2.5 inch SATA 6Gb/s unit; no bracket, screws, cables or migration software are included, so source a 2.5 to 3.5 inch adapter and a SATA data cable if your chassis needs them.

The range tops out at 250GB; is that the only capacity for this 840 EVO model?

MZ-7TE250BW is the 250GB SKU; other 840 EVO capacities carry different part numbers, so choose this model when 250GB matches your budget and storage target.

With 540MB/s sequential read and 97,000 IOPS random read on SATA 6Gb/s, what real-world boot and app-launch speed can I expect?

The 3-core MEX controller and 512MB DRAM cache deliver near-interface saturation on large files and snappy small-file response, cutting typical Windows boot to well under 20 seconds and launching heavy apps in a few seconds on a SATA 6Gb/s port.

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