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Rectangular 2.5 inch SATA SSD with silver metal casing and Samsung label

SAMSUNG

SAMSUNG 870 QVO 4TB 2.5" SATA III internal SSD MZ-77Q4T0B/AM

SKU CH-61R6-Y9161 MPN MZ-77Q4T0B/AM

A 4TB 2.5" SATA III internal SSD with V-NAND, 560/530 MB/s sequential speeds, AES 256-bit encryption and 1440TB endurance

  • Device TypeInternal Solid State Drive (SSD)
  • Used ForConsumer
  • Form Factor2.5"
  • Capacity4TB
  • Memory ComponentsV-NAND
  • InterfaceSATA III

Options 4TB

  • 4TB capacity stores large media libraries and game collections
  • Sequential reads up to 560 MBps and writes up to 530 MBps accelerate file transfers
  • AES 256-bit encryption with TCG/Opal 2.0 protects data at rest
  • 1440 TBW endurance rating supports heavy daily workloads
  • Samsung Magician software monitors health and enables firmware updates

4TB SATA III QLC Drive

The Samsung 870 QVO MZ-77Q4T0B/AM is a 4TB internal solid state drive built for consumer desktops and laptops. It uses V-NAND memory and a SATA III interface to deliver high-capacity storage in the standard 2.5 inch form factor. The drive includes a 4GB Low Power DDR4 cache and supports AES 256-bit encryption with TCG Opal 2.0 compliance.

Simple 2.5 Inch SATA Upgrade

Installation follows the standard 2.5 inch SATA process: connect the drive to a SATA data cable and power connector inside a compatible bay or caddy. No additional drivers are required for the SATA interface to be recognised by the operating system. The Samsung Magician software assists with initial setup, firmware updates and health monitoring. The main issue arises when a system lacks a free SATA port or a 2.5 inch mounting location, which prevents physical installation.

Sustained Write Behaviour With 1440 TBW

The MKX controller and refined ECC algorithm manage sustained workloads to maintain stable performance beyond the SLC cache region. Sequential write speeds reach up to 530 MBps while the 1440 TBW endurance rating and 1.5 million hour MTBF reflect long-term reliability. TRIM support and automatic garbage collection help preserve consistent write latency during extended operations. Device sleep mode reduces power draw when the drive is idle.

Points forts

  • 4TB capacity stores large media libraries and game collections
  • Sequential reads up to 560 MBps and writes up to 530 MBps accelerate file transfers
  • AES 256-bit encryption with TCG/Opal 2.0 protects data at rest
  • 1440 TBW endurance rating supports heavy daily workloads
  • Samsung Magician software monitors health and enables firmware updates

Caractéristiques

BrandSAMSUNG
Series870 QVO Series
ModelMZ-77Q4T0B/AM
Device TypeInternal Solid State Drive (SSD)
Used ForConsumer
Form Factor2.5"
Capacity4TB
Memory ComponentsV-NAND
InterfaceSATA III
ProtocolSATA
ControllerMKX
CacheSamsung 4GB Low Power DDR4 SDRAM
EncryptionAES 256-bit Full Disk Encryption, TCG/Opal V2.0, Encrypted Drive (IEEE1667)
Max Sequential ReadUp to 560 MBps
Max Sequential WriteUp to 530 MBps
4KB Random ReadRandom (QD1) [IOPS]: 11,000
Random (QD32) [IOPS]: 98,000
4KB Random WriteRandom (QD1) [IOPS]: 35,000
Random (QD32) [IOPS]: 88,000
Terabytes Written (TBW)1440TB
MTBF1,500,000 hours
FeaturesTrim Support: Yes
Encryption: AES 256-bit Full Disk Encryption, TCG/Opal V2.0, Encrypted Drive (IEEE1667)
Security: AES 256-bit Full Disk Encryption, TCG/Opal V2.0, Encrypted Drive (IEEE1667)
S.M.A.R.T. Support: Yes
GC (Garbage Collection): Auto Garbage Collection Algorithm
WWN Support: World Wide Name supported
Device Sleep Mode Support: Yes
Management SW: Magician Software for SSD management
Power Consumption (Idle)35 mW
Power Consumption (Active)3.2W Average
5.5W Max
Operating Temperature0°C ~ +70°C
Max Shock Resistance1,500G & 0.5 ms (Half sine)
Height7.00mm
Width70.00mm
Depth100.00mm
Weight86.18g
Poids d’expédition0.10 kg
Dimensions du colis145 × 99 × 20 mm

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Questions sur cet article

How do I confirm the 870 QVO 4TB is performing at its rated 560 MB/s read and 530 MB/s write after installation?

Run a SATA benchmark tool such as CrystalDiskMark or Samsung Magician and verify sequential results approach 560 MB/s read and 530 MB/s write; S.M.A.R.T. data will also show the drive healthy with 0 reallocated sectors.

What comes inside the MZ-77Q4T0B/AM retail box and what must I supply myself?

The box contains the 2.5 inch 4TB SATA SSD only; you must provide a SATA data cable, a SATA power connection from your PSU, and a 2.5 inch drive bay or adapter bracket for desktop mounting.

Which 870 QVO capacity should I choose if I want the 1,440 TBW endurance rating and 4GB DDR4 cache?

The 4TB model matches those specifications; the 1TB and 2TB versions have lower TBW ratings while the 8TB model offers 2,880 TBW.

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