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SAMSUNG

SAMSUNG 870 QVO Series MZ-77Q4T0BW 4TB 2.5" SATA internal SSD

SKU CH-G740-4TWF6

A 4TB 2.5-inch SATA internal SSD with Samsung V-NAND 4bit MLC, MKX controller and 4GB DDR4 cache reaching 560MB/s read and 530MB/s write

  • Total capacity4 TB
  • Sequential read speedUp to 560 MB/s
  • Sequential write speedUp to 530 MB/s
  • Interface typeSATA III
  • Form factor2.5 in (6.35 cm)
  • Product typeInternal Solid State Drive (SSD)
  • 4 TB capacity stores large media libraries
  • Sequential reads up to 560 MBps load files quickly
  • Sequential writes up to 530 MBps save projects fast
  • 4 GB DDR4 cache sustains heavy workloads
  • 1 500 000 hour MTBF indicates long service life

High-Capacity SATA SSD for Consumer Storage

The Samsung 870 QVO Series MZ-77Q4T0BW is a 2.5 inch internal solid-state drive with a 4TB capacity. It connects via a SATA III interface and uses Samsung V-NAND 4bit MLC memory managed by a Samsung MKX controller. A 4 GB Low Power DDR4 SDRAM cache supports burst performance. The drive is built for consumer workloads and offers sequential reads up to 560 MBps and writes up to 530 MBps.

Suitable for Bulk Data.

This drive suits users who need affordable, high-capacity storage for media libraries, backups and general file archives on systems with 2.5 inch SATA bays. Random read performance reaches 98,000 IOPS and random write reaches 88,000 IOPS for everyday responsiveness. It is less appropriate for workloads that demand sustained high write throughput or the lower latency of a PCIe interface. The 1,500,000 hour MTBF and 1500G shock resistance support reliable operation in laptops or desktops.

4TB Capacity Decides Fit

The single specification that determines whether this is the right part is the 4TB capacity. Buyers must confirm their system accepts a 2.5 inch SATA drive of this physical size and that the storage volume meets their needs. Power draw is 35 mW idle and 3.2 W active, with an operating range of 0°C to 70°C. The drive measures 6.80 mm high, 100.00 mm wide and 69.85 mm deep, weighing 54.00 g.

How it compares

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

Price $664.99
Pricier than about 84% of the 1,994 comparable items (median $180.49).
Total capacity 4 TB
Higher than about 90% of the 1,368 comparable items (median 1 TB).
Sequential read speed Up to 560 MB/s
Lower than about 60% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $166.25 per TB
Typical for this category: the median of 1,362 items is $165.50 per TB.

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Specifications

Product
Brand nameSAMSUNG
Product line870 QVO Series
Model nameMZ-77Q4T0BW
Total capacity4 TB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 560 MB/s
Sequential write speedUp to 530 MB/s
Random read (4K)Up to 98,000 IOPS
Random write (4K)Up to 88,000 IOPS
Storage
NAND flash typeSamsung V-NAND 4bit MLC
Controller chipSamsung MKX Controller
Cache memorySamsung 4 GB Low Power DDR4 SDRAM
Ports & slots
Interface typeSATA III
Power
Idle power draw35 mW
Active power draw3.2 W
Size & build
Form factor2.5 in (6.35 cm)
Overall height6.8 mm
Overall width100 mm
Product depth69.85 mm
Product weight54g
Environment & compliance
Operating temperature range0 °C to 70 °C
Max shock tolerance1500G
More details
Mean time between failures1,500,000 h

Questions about this item

What SATA port does my motherboard need for the 870 QVO MZ-77Q4T0BW to work?

The drive uses a SATA III interface, so a motherboard with a SATA 6 Gb/s port will let it reach the rated 560 MBps read and 530 MBps write speeds.

Can I keep my older SATA II drive and run it alongside this 4 TB SSD?

Yes, both drives connect to separate SATA ports; the 870 QVO will operate at SATA III speeds while the older drive remains limited to its own SATA II throughput.

How do I confirm the 870 QVO is delivering its rated 98,000 IOPS random read performance after installation?

Run a 4 KB random-read benchmark such as CrystalDiskMark or AS SSD and verify the result approaches 98,000 IOPS on a SATA III port with AHCI enabled.

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