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

SAMSUNG

SAMSUNG 870 EVO MZ-77E250B/AM 250GB internal SSD

SKU CH-SCNM-AYQFX MPN MZ-77E250B/AM

A 2.5 inch SATA solid-state drive with 250GB capacity, 512MB DRAM cache and sequential speeds up to 560 MBps read and 530 MBps write

  • Total capacity250 GB
  • 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 250GB

  • SATA III sequential read up to 560 MBps for fast boot and load times
  • SATA III sequential write up to 530 MBps for responsive file saves and transfers
  • 512MB DRAM cache sustains high performance during heavy workloads
  • AES 256-bit hardware encryption protects data without software overhead
  • 1,500,000-hour MTBF and 1500G shock resistance ensure long-term reliability

250GB SATA III internal SSD

The Samsung 870 EVO MZ-77E250B/AM is a 250GB internal solid state drive built for consumer desktops and laptops. It uses a 2.5 inch form factor with a SATA III interface and 512MB DRAM cache. V-NAND memory delivers sequential reads up to 560 MBps and writes up to 530 MBps.

Suits everyday computing and 8K video tasks

This drive fits users who want a direct SATA upgrade for a desktop PC, laptop or compatible NAS and video recorder. It supports AES 256 encryption with TCG Opal 2.0 and IEEE 1667. Systems without a 2.5 inch SATA bay or that require a different protocol will need another solution.

Sustained workloads stay within SATA limits

Under continuous use the drive draws an average 2.2W and a maximum of 3.5W, with idle power at 30 mW. The larger variable buffer helps maintain long-term write performance at the SATA interface ceiling. MTBF is rated at 1,500,000 hours and endurance reaches 600 TBW.

How it compares

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

Price $42.99
Cheaper than about 92% of the 1,994 comparable items (median $180.49).
Total capacity 250 GB
Lower than about 84% 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 $171.96 per TB
Typical for this category: the median of 1,362 items is $165.50 per TB.

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Specifications

Product
Brand nameSAMSUNG
Product line870 EVO Series
Model nameMZ-77E250B/AM
Total capacity250 GB
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 memory512 MB DRAM
Data encryptionClass 0 (AES 256) TCG/Opal v2.0, MS eDrive (IEEE1667)
Connectivity
Connection protocolSATA
Ports & slots
Interface typeSATA III
Power
Idle power drawMax. 30 mW
Active power drawAverage: 2.2 W
Maximum: 3.5 W
Size & build
Form factor2.5 in (6.35 cm)
Overall height7 mm
Overall width69.85 mm
Product depth100 mm
Product weight86.18g
Shipping weight0.09 kg
Package size165 × 98 × 24 mm
Environment & compliance
Max shock tolerance1500G
More details
Mean time between failures1,500,000 h

Other versions of this model

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Questions about this item

Does my motherboard need a 2.5 inch SATA III port to install the 870 EVO MZ-77E250B/AM?

Yes, the drive uses the standard 2.5 inch form factor and connects through a SATA III interface, so the host must provide a matching SATA data and power connection.

Will the 870 EVO work alongside an older mechanical hard drive on the same SATA controller?

The SSD is backwards compatible with SATA I and SATA II ports, so it will operate alongside legacy drives, though sequential speeds will be limited by the slower port.

How can I verify the 870 EVO is delivering its rated 560 MBps read and 530 MBps write performance after setup?

Run a sequential benchmark such as CrystalDiskMark or Samsung Magician; results close to 560 MBps read and 530 MBps write confirm the drive is operating at the SATA III limit.

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