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Samsung 840 EVO 2.5 inch SATA internal SSD in black metal casing

SAMSUNG

SAMSUNG 840 EVO MZ-7TE1T0BW 1TB 2.5" SATA internal SSD

SKU CH-VWNB-7RGQS MPN MZ-7TE1T0BW

A 2.5-inch SATA internal SSD storing 1 TB with sequential reads up to 540 MB/s and writes up to 520 MB/s

  • Total capacity1 TB
  • Interface typeSATA III
  • Form factor2.5 in (6.35 cm)
  • Product typeInternal Solid State Drive (SSD)
  • Intended useConsumer
  • NAND flash typeMLC

Capacity 1TB

  • 540 MB/s sequential read speeds up boot and load times
  • 520 MB/s sequential write handles large files quickly
  • 98,000 IOPS random read for responsive apps
  • 1,500,000 hours MTBF for long-term reliability
  • 14 W idle power keeps laptops cool and efficient

Samsung 840 EVO 1TB SATA SSD

The Samsung 840 EVO MZ-7TE1T0BW is a 2.5 inch internal solid state drive with a 1TB capacity and a SATA interface. It uses MLC memory and a Samsung 3-core MEX controller to deliver 540 MB/s sequential read and 520 MB/s sequential write speeds. The drive is designed for consumer desktops and notebooks.

Suits SATA upgrades and secondary storage.

This SSD fits any system with a 2.5 inch SATA bay, making it a direct upgrade for older laptops and desktops that still use the SATA interface. Users needing higher random IOPS, lower latency or enterprise-grade endurance should consider drives built for those workloads.

1TB capacity handles OS, apps and media libraries

The 1TB volume comfortably holds an operating system, a full application suite and large photo or video collections while leaving headroom for temporary files. Sequential workloads run at the rated 540 MB/s read and 520 MB/s write limits; sustained heavy write cycles will eventually reach the MLC endurance ceiling.

How it compares

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

Price $354.99
Pricier than about 73% of the 1,994 comparable items (median $180.49).
Total capacity 1 TB
Typical for this category: the median of 1,368 items is 1 TB.
Price per TB $354.99 per TB
Pricier than about 81% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameSAMSUNG
Product line840 EVO
Model nameMZ-7TE1T0BW
Total capacity1 TB
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 98,000 IOPS
Random write (4K)Up to 90,000 IOPS
Storage
NAND flash typeMLC
Controller chipSamsung 3-core MEX
Ports & slots
Interface typeSATA III
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 weight0.13 kg
Package size145 × 140 × 18 mm
Environment & compliance
Operating temperature range0 °C to 70 °C
Operating humidity range5% to 95% RH
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 this 2.5 inch SATA III SSD need a separate power cable or adapter to work in a desktop?

The drive uses the standard SATA data and power connectors, so a desktop only needs a free SATA port on the motherboard and a SATA power lead from the power supply. No extra adapter is required for the 2.5 inch form factor.

Will this SATA III drive run at full 540 MB/s read speed on a motherboard limited to SATA 3 Gb/s?

The drive is backward compatible with SATA 3 Gb/s ports, but the 540 MB/s sequential read and 520 MB/s write speeds require a SATA 6 Gb/s connection. On the older port, throughput will be capped at the lower bus limit.

How can I confirm the 1 TB Samsung 840 EVO is delivering its rated 98,000 IOPS random read performance after installation?

Run a benchmark tool such as CrystalDiskMark or AS SSD using the 4 KB random read test. Results approaching 98,000 IOPS indicate the drive and SATA III link are operating as specified.

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