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Rectangular 2.5 inch black metal SSD with label and SATA connectors

SAMSUNG

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

SKU CH-NMTV-3XSMP

A 2.5" SATA internal SSD with 4TB capacity, Samsung V-NAND 4bit MLC memory, up to 560 MBps read and 530 MBps write speeds, and a 4 GB DDR4 cache

  • Device TypeInternal Solid State Drive (SSD)
  • Used ForConsumer
  • Form Factor2.5"
  • Capacity4TB
  • Memory ComponentsSamsung V-NAND 4bit MLC
  • InterfaceSATA III
  • 4TB capacity stores large media libraries and game collections
  • Sequential read up to 560 MBps and write up to 530 MBps for fast boot and app launch
  • Samsung V-NAND 4bit MLC with MKX controller delivers up to 98,000 random read IOPS
  • 1,500,000 hour MTBF and 1500G shock resistance protect data in daily use
  • 4 GB Low Power DDR4 cache and Intelligent TurboWrite sustain write performance over time

4TB SATA III SSD for everyday PCs

The Samsung 870 QVO MZ-77Q4T0BW is a 2.5-inch internal solid-state drive built for consumer desktops and laptops. It uses Samsung V-NAND 4bit MLC memory and a Samsung MKX controller to deliver 4TB of storage over a SATA III interface. The drive includes a 4GB Low Power DDR4 SDRAM cache to help sustain performance during typical workloads.

SATA III interface limits sequential speed

Sequential reads reach up to 560 MBps and writes up to 530 MBps, matching the practical ceiling of the SATA III bus. Random 4KB performance is rated at up to 98,000 IOPS read and 88,000 IOPS write. Intelligent TurboWrite uses a larger variable buffer to maintain write speeds over extended transfers. Power draw is 35 mW idle and 3.2 W active, with an operating range of 0°C to 70°C.

1.5 million-hour MTBF for long-term use

The drive carries a mean-time-between-failures rating of 1,500,000 hours and a shock resistance of 1500G. These figures indicate the endurance expected for a high-capacity QLC drive in daily consumer use. The combination of capacity, SATA compatibility and rated reliability makes it a straightforward upgrade for systems limited to the 2.5-inch SATA form factor.

Points forts

  • 4TB capacity stores large media libraries and game collections
  • Sequential read up to 560 MBps and write up to 530 MBps for fast boot and app launch
  • Samsung V-NAND 4bit MLC with MKX controller delivers up to 98,000 random read IOPS
  • 1,500,000 hour MTBF and 1500G shock resistance protect data in daily use
  • 4 GB Low Power DDR4 cache and Intelligent TurboWrite sustain write performance over time

Caractéristiques

BrandSAMSUNG
Series870 QVO Series
ModelMZ-77Q4T0BW
Device TypeInternal Solid State Drive (SSD)
Used ForConsumer
Form Factor2.5"
Capacity4TB
Memory ComponentsSamsung V-NAND 4bit MLC
InterfaceSATA III
ControllerSamsung MKX Controller
CacheSamsung 4 GB Low Power DDR4 SDRAM
Max Sequential ReadUp to 560 MBps
Max Sequential WriteUp to 530 MBps
4KB Random ReadUp to 98,000 IOPS
4KB Random WriteUp to 88,000 IOPS
MTBF1,500,000 hours
Power Consumption (Idle)35 mW
Power Consumption (Active)3.2 W
Operating Temperature0°C ~ +70°C
Max Shock Resistance1500G
Height6.80mm
Width100.00mm
Depth69.85mm
Weight54.00g

Questions sur cet article

Should I choose the 4 TB model or look at the smaller capacities in the 870 QVO line?

The 4 TB version gives you the largest single-drive capacity available in this SATA series while keeping the same 560 MB/s read and 530 MB/s write limits, so you only need one bay for a full media library.

What does the 560 MB/s sequential read figure actually deliver once the drive is installed?

It means the drive saturates the SATA III bus, so boot times, game loads and large file copies run at the interface ceiling rather than being bottlenecked by the SSD itself.

How does the SATA III interface limit real-world performance of this drive?

The SATA III link caps both sequential and sustained random throughput at the 560/530 MB/s ceiling, so the MKX controller and 4 GB DDR4 cache cannot push speeds beyond that boundary.

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