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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

  • Device TypeInternal Solid State Drive (SSD)
  • Used ForConsumer
  • Form Factor2.5"
  • Capacity250GB
  • Memory ComponentsV-NAND
  • InterfaceSATA III

Options 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.

Highlights

  • 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

Specifications

BrandSAMSUNG
Series870 EVO Series
ModelMZ-77E250B/AM
Device TypeInternal Solid State Drive (SSD)
Used ForConsumer
Form Factor2.5"
Capacity250GB
Memory ComponentsV-NAND
InterfaceSATA III
ProtocolSATA
Cache512MB DRAM
EncryptionClass 0 (AES 256) TCG/Opal v2.0, MS eDrive (IEEE1667)
Max Sequential ReadUp to 560 MBps
Max Sequential WriteUp to 530 MBps
MTBF1,500,000 hours
FeaturesTHE SSD ALL-STAR - The latest 870 EVO has indisputable performance, reliability and compatibility built upon Samsung's pioneering technology.
EXCELLENCE IN PERFORMANCE - Enjoy professional-level SSD performance with 870 EVO, which maximizes the SATA interface limit to 560/530 MB/s sequential speeds, accelerates write speeds and maintains long-term high performance with a larger variable buffer.
INDUSTRY-DEFINING RELIABILITY - Meet the demands of every task - from everyday computing to 8K video processing, with up to 150 TBW.
MORE COMPATIBLE THAN EVER - 870 EVO has been compatibility
Power Consumption (Idle)Max. 30 mW
Power Consumption (Active)Average: 2.2W
Maximum: 3.5W
Max Shock Resistance1500G
Height7.00mm
Width69.85mm
Depth100.00mm
Weight86.18g
Shipping weight0.09 kg
Package size165 × 98 × 24 mm

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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