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Black 2.5 inch SATA SSD with silver label, 7mm thick

SAMSUNG

SAMSUNG 870 QVO 2TB 2.5" SATA internal SSD MZ-77Q2T0BW

SKU CH-PSDF-AE78H

A 2.5 inch SATA solid-state drive with 2TB capacity and sequential speeds up to 560MB/s read and 530MB/s write

  • Total capacity2 TB
  • Sequential read speed560 MB/s
  • Sequential write speed530 MB/s
  • Interface typeSATA III
  • Form factor2.5 in (6.35 cm)
  • Product typeInternal Solid State Drive (SSD)
  • 2TB capacity stores large media libraries and backups
  • 560 MB/s sequential read speeds up everyday file access
  • 530 MB/s sequential write handles big transfers quickly
  • 5 inch 7mm form factor fits most laptops and desktops
  • Low 4 watt active draw runs cooler and saves battery

Samsung 870 QVO 2TB SATA SSD

This 2.5-inch internal solid-state drive offers 2TB of storage using QLC memory and a SATA III interface. It delivers maximum sequential read speeds of 560MB/s and maximum sequential write speeds of 530MB/s. The drive measures 7mm in height, 70mm in width and 100mm in depth, drawing 4 watts during active operation.

Who this suits and who should look elsewhere

The drive fits users who want a high-capacity SATA upgrade for a laptop or desktop with a 2.5-inch bay. Buyers whose systems only accept an M.2 module or require a PCIe-based interface will need a different form factor. Those seeking the absolute fastest flash storage available should evaluate drives built on faster interfaces.

The specification that decides fit

The SATA III interface and 2.5-inch 7mm form factor determine whether this drive installs in your machine. Verify that your system provides a standard SATA data and power connection and a 7mm drive bay before purchase.

How it compares

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

Price $512.99
Pricier than about 81% of the 1,994 comparable items (median $180.49).
Total capacity 2 TB
Higher than about 70% of the 1,368 comparable items (median 1 TB).
Sequential read speed 560 MB/s
Lower than about 60% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $256.50 per TB
Pricier than about 71% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameSAMSUNG
Product line870 QVO Series
Model nameMZ-77Q2T0BW
Part numberMZ-77Q2T0BW
Total capacity2 TB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speed560 MB/s
Sequential write speed530 MB/s
Storage
NAND flash typeQLC
Cache memory78 unknown modifier
Connectivity
Connection protocolSATA
Ports & slots
Interface typeSATA III
ConnectionSATA
Power
Active power draw4 W
Size & build
Form factor2.5 in (6.35 cm)
Overall height7 mm
Overall width70 mm
Product depth100 mm

Questions about this item

What does the 560 MB/s sequential read speed mean when the drive is installed in a laptop?

The 560 MB/s figure is the SATA III interface limit; in a real machine the drive will read large files at up to that speed, while smaller random reads will be slower.

How does the SATA III connector limit the 530 MB/s write speed in practice?

SATA III caps at 6 Gb/s, so the 530 MB/s sequential write cannot be exceeded; sustained writes to the QLC memory will stay at or below this ceiling.

Will the 7 mm height fit a standard 2.5 inch drive bay?

Yes, the 7 mm height matches the common 2.5 inch bay spec; the drive measures 100 mm by 70 mm and uses a standard SATA connector.

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