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Rectangular black 2.5 inch SSD with silver label and connector end

SAMSUNG

SAMSUNG 870 EVO 8TB 2.5" SATA internal SSD

SKU CH-YH91-H9PGK

8TB 2.5" SATA internal SSD delivering up to 560 MB/s read and 530 MB/s write with 4GB DDR4 cache and 4,800 TBW endurance

  • Total capacity8 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)

Capacity 8TB

  • Massive 8.0 TB capacity stores huge media libraries
  • Sequential reads up to 560 MB/s speed up boot and load times
  • Sequential writes up to 530 MB/s accelerate large file transfers
  • 1,500,000-hour MTBF and 4,800 TBW ensure long-term reliability
  • AES 256-bit hardware encryption protects sensitive data

8TB SATA SSD for consumer workloads

The Samsung 870 EVO is a 2.5 inch internal solid state drive with 8TB of capacity. It connects through a SATA III interface and uses V-NAND technology with a 4GB Low Power DDR4 cache. Sequential reads reach up to 560 MBps and writes up to 530 MBps. The drive is rated for 1,500,000 hours MTBF and 4,800 TBW.

Upgrading from smaller SATA drives

Moving to this 8TB model makes sense when a lower capacity SATA SSD no longer holds the working set or media library. The larger variable buffer helps sustain write performance during long transfers. Compatibility testing covers major chipsets, motherboards, NAS units and video recording devices. Encryption support includes AES 256 with TCG Opal 2.0 and IEEE1667.

Capacity headroom for large media libraries

Eight terabytes comfortably stores extensive photo, video and game collections without frequent cleanup. Sustained sequential speeds stay near the SATA interface limit for typical streaming and editing tasks. Random workloads that exceed the cache size will see reduced throughput. The 7mm height fits standard 2.5 inch drive bays in laptops and desktops.

How it compares

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

Price $2,744.99
Pricier than about 92% of the 1,994 comparable items (median $180.49).
Total capacity 8 TB
Higher than about 94% 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 $343.12 per TB
Pricier than about 80% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameSAMSUNG
Product line870 EVO Series
Model nameMZ-77E8T0BW
Part numberMZ-77E8T0BW
Total capacity8 TB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 560 MB/s
Sequential write speedUp to 530 MB/s
Storage
Cache memorySamsung 4 GB Low Power DDR4 SDRAM
Ports & slots
Interface typeSATA III
Size & build
Form factor2.5 in (6.35 cm)
Overall height7 mm
Overall width70 mm
Product depth100 mm
More details
Mean time between failures1,500,000 h

Other versions of this model

5 more in the same range

Questions about this item

Will the 2.5 inch 7.00mm height fit my laptop drive bay?

The drive measures 7.00mm tall, 70.00mm wide and 100.00mm deep, matching the standard 2.5 inch SATA form factor used in most laptops and desktops.

What is the correct way to connect the SATA data and power cables?

Align the L-shaped keys on both connectors, press straight in until they click, and ensure the SATA III port is set to AHCI mode in BIOS for full performance.

How many terabytes can be written before the drive reaches its rated endurance?

The drive is rated for up to 4,800 TBW, and the 1,500,000 hour MTBF indicates long-term reliability under typical consumer workloads.

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