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Rectangular black metal 2.5 inch SATA SSD with Samsung label

SAMSUNG

SAMSUNG 870 EVO MZ-77E8T0B/AM 2.5" 8TB SATA III internal SSD

SKU CH-5TWV-ZMGGM MPN MZ-77E8T0B/AM

SATA III internal SSD with 8 TB of V-NAND storage, up to 560 MBps read and 530 MBps write speeds, AES 256-bit encryption and a 4 800 TBW endurance rating

  • 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 8TB capacity stores huge media libraries and archives
  • SATA III interface delivers up to 560 MBps sequential read speeds
  • AES 256-bit encryption with TCG Opal 2.0 protects sensitive data
  • 4800 TBW endurance rating supports heavy daily workloads
  • 1,500,000-hour MTBF ensures long-term drive reliability

Capacity and audience

The Samsung 870 EVO MZ-77E8T0B/AM is a 2.5 inch internal SSD with an 8TB capacity and a SATA III interface. It uses V-NAND memory and includes an 8GB Low Power DDR4 cache. The drive targets consumers who need large storage for content creation or general professional workloads.

Thermals, noise and power

With no moving parts the drive runs silently in normal use. Idle power draw is rated at 2.2W or 2.6W depending on the operating state, while active consumption is listed at 40mW. AES 256-bit encryption with TCG Opal 2.0 and IEEE 1667 support adds security without increasing thermal output.

Sustained load behaviour

Sequential reads reach up to 560 MBps and writes up to 530 MBps under continuous workloads. The drive is rated for 4800 TBW and an MTBF of 1,500,000 hours, indicating durability for long-term heavy writing. Samsung Magician software helps monitor health and maintain consistent performance over time.

How it compares

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

Price $2,953.99
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 $369.25 per TB
Pricier than about 81% of the 1,362 comparable items (median $165.50 per TB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSAMSUNG
Product line870 EVO Series
Model nameMZ-77E8T0B/AM
Part numberMZ-77E8T0B/AM
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
NAND flash typeV-NAND
Cache memorySamsung 8 GB Low Power DDR4 SDRAM
Data encryptionAES 256-bit Full Disk Encryption, TCG/Opal V2.0, Encrypted Drive (IEEE1667)
Write endurance4800 TB
Connectivity
Connection protocolSATA
Ports & slots
Interface typeSATA III
Power
Idle power draw2.2 W / 2.6 W
Active power draw40mW
Size & build
Form factor2.5 in (6.35 cm)
Overall height6.8 mm
Overall width69.9 mm
Product depth100 mm
Product weight48g
Shipping weight0.11 kg
Package size165 × 97 × 20 mm
More details
Mean time between failures1,500,000 h

Other versions of this model

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Questions about this item

How do I install the 2.5" 8TB SATA III drive and what step is often missed?

Connect the drive to a SATA data cable and a SATA power connector, then enable AHCI mode in the BIOS so the operating system can use the Samsung 8GB Low Power DDR4 cache and AES 256-bit encryption correctly.

What maintenance or replacement will the 8TB V-NAND SSD need over its life?

The drive has a 4800 TBW endurance rating and 1,500,000-hour MTBF; no user-serviceable parts exist, so replacement is only required if the TBW limit is reached or the drive fails.

What limit appears first during sustained heavy writes on this 8TB SATA SSD?

The sequential write speed caps at 530 MBps, and the 4800 TBW endurance budget is the first hard limit reached under continuous write workloads.

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