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Rectangular 2.5 inch SATA internal SSD with black metal casing and Samsung branding

SAMSUNG

SAMSUNG 870 QVO MZ-77Q1T0B/AM 1TB SATA internal SSD

SKU CH-419N-M9H7S

A 2.5-inch SATA internal SSD with 1TB of V-NAND storage, 560 MBps read and 530 MBps write speeds, AES 256-bit encryption and 360TB endurance

  • Total capacity1 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)
  • 1TB capacity for large game libraries and media archives
  • Sequential reads up to 560 MBps and writes up to 530 MBps for fast file transfers
  • 360 TBW endurance rating and 1.5 million hour MTBF for long-term reliability
  • AES 256-bit encryption with TCG/Opal V2.0 support for hardware-level data security
  • Samsung Magician software included for drive health monitoring and performance optimisation

870 QVO 1TB consumer SATA SSD

The Samsung 870 QVO is a 2.5 inch internal solid state drive built for everyday computing in desktops and laptops. It uses second-generation QLC V-NAND and a 1 GB low-power DDR4 cache to deliver up to 1 TB of storage capacity. The MKX controller manages data with AES 256-bit hardware encryption and TCG Opal 2.0 support for data security.

SATA III interface practical limits

The drive connects through the SATA III interface, which caps sequential throughput at 560 MBps read and 530 MBps write. Random performance reaches 98,000 IOPS read and 88,000 IOPS write at queue depth 32, while single-queue operations deliver 11,000 IOPS read and 35,000 IOPS write. These figures represent the practical ceiling of the SATA bus.

360 TBW endurance rating

The 1 TB model carries a 360 TBW endurance rating and a 1,500,000 hour MTBF, defining its expected write lifetime under typical consumer workloads. This specification determines whether the drive suits your workload intensity and data-retention requirements.

How it compares

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

Price $247.99
Pricier than about 62% 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.
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 $247.99 per TB
Pricier than about 70% 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-77Q1T0B/AM
Part numberMZ-77Q1T0B/AM
Total capacity1 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)Random (QD1) [IOPS]: 11,000
Random (QD32) [IOPS]: 98,000
Random write (4K)Random (QD1) [IOPS]: 35,000
Random (QD32) [IOPS]: 88,000
Storage
NAND flash typeV-NAND
Controller chipMKX
Cache memorySamsung 1 GB Low Power DDR4 SDRAM
Data encryptionAES 256-bit Full Disk Encryption, TCG/Opal V2.0, Encrypted Drive (IEEE1667)
Write endurance360 TB
Connectivity
Connection protocolSATA
Ports & slots
Interface typeSATA III
Power
Idle power draw30 mW
Active power drawRead: 2.2 W
Write: 4 W
Size & build
Form factor2.5 in (6.35 cm)
Overall height7 mm
Overall width70 mm
Product depth100 mm
Product weight86.18g
Environment & compliance
Operating temperature range0 °C to 70 °C
Max shock tolerance1,500G & 0.5 ms (Half sine)
More details
Mean time between failures1,500,000 h

Questions about this item

Should I choose the 1 TB model or a larger 870 QVO capacity?

The 870 QVO series is available in 1, 2, 4 and 8 TB. The 1 TB version provides 360 TBW endurance and 1 GB DDR4 cache; larger capacities scale TBW proportionally while keeping the same 560/530 MB/s sequential limits.

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

That is the SATA III interface ceiling. In a real machine you will see sustained reads near 560 MB/s for large files, while random 4 KB reads reach 11,000 IOPS at QD1 and 98,000 IOPS at QD32.

Does the SATA III interface cap performance compared to newer standards?

Yes. SATA III tops out at 560 MB/s read and 530 MB/s write, so the 870 QVO hits the bus limit. The drive uses the MKX controller with 1 GB DDR4 cache and AES 256-bit encryption within that ceiling.

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