Samsung 860 EVO 2.5in SSD, SATA III, 4TB

MX70321 860 EVO 2.5in SSD, SATA III, 4TB
MX70321 860 EVO 2.5in SSD, SATA III, 4TB MX70321 860 EVO 2.5in SSD, SATA III, 4TB MX70321 860 EVO 2.5in SSD, SATA III, 4TB

Product Info

V-NAND Technology Deliverings Ultimate Read/Write Performance!


The SSD You Trust

The newest edition to the world's best-selling* SATA SSD series, the Samsung 860 EVO is specially designed to enhance performance of mainstream PCs and laptops. With the latest V-NAND technology, this fast and reliable SSD comes in a wide range of compatible form factors and capacities.
*Sources: NPD (US data from Jan. 2015 to Oct. 2017)


Enhanced Performance


featureThis SSD's speeds are consistent, even under heavy workloads and multi-tasking allowing for faster file transfer.

The 860 EVO performs effortlessly at sequential read speeds up to 550 MB/s* with Intelligent TurboWrite technology, and sequential write speeds up to 520 MB/s.

The TurboWrite buffer size* is upgraded to 78 GB on this 4TB model for outstanding results, no matter if you are at the office or at home.
Performance may vary based on SSD’s firmware version and system hardware & configuration.
** Performance may vary based on SSD's firmware version and system hardware & configuration. Sequential write performance measurements are based on Intelligent TurboWrite technology. Sequential performance measurements based on CrystalDiskMark v.5.0.2 and I0meter 1.1.0. The sequential write performances are Intelligent TurboWrite region are 300 MB/s for 250/500 GB and 500 MB/s for 1 TB.
* Test system configuration: Intel Core i5-3550 CPU @ 3.3 GHz, 4 GB, OS - Windows 7 Ultimate x64, Chipset: ASUS P8H77-V.
* The TurboWrite buffer size varies based on the capacity of the SSD: 4 TB for 78 GB.

Smart Compatibility

Benefit from faster, more fluid communication with your host system. The refined ECC* algorithm and a new MJX controller generate higher speeds, and the improved queued trim enhances Linux compatibility.
* Error Correction Code

Backed by a 5 Year Manufacturer Limited Warranty


Up to 8x higher TBW (Terabytes Written)* than the 850 EVO. Feel secure storing and rendering large sized 4K videos and 3D data used by the latest applications. The Samsung 860 EVO with V-NAND technology is backed by a 5-year limited warranty.*
* 5 Years or 2,400 TBW, whichever comes first, for 4 TB model.

Samsung Magician Softwarefeature

Samsung Magician software is designed to help you manage your SSDs with a simple and intuitive user interface that anyone can use. Get the information you need on SSD reliability, performance and TeraBytes Written quickly and easily. You can Setup and maintain drive performance features like a Pro. Some advanced features are only available on Samsung SSDs...

  • Firmware Update
    Get notifications when new firmware is released, and easily install updates for enhanced performance, stability, and compatibility
  • Performance Benchmark
    Check your SSD's sequential and random read/write speeds, so you can maintain superb performance
  • Data security
    Protect data by selecting security options. The 860 supports AES 256-bit hardware-based encryption and is compliant with TCG Opal and IEEE 1667


Make and Model Samsung 860 EVO 2.5 inch SATA III SSD, 4TB
Part Number MZ-76E4T0B/AM
Capacity Unformatted: 4TB1
Controller Samsung MJX Controller
NAND Flash Type Samsung V-NAND 3bit MLC
Interface SATA III
Transfer Rate Up to 6.0 Gb/s
RAID Support Yes, with RAID Controller, not included
TRIM Support Yes, with OS Support
Random IOPS Random 4KB, QD32:
Reads: Up to 98,000 IOPS
Writes: Up to 90,000 IOPS

Random 4KB, QD1:
Reads: Up to 11,000 IOPS
Writes: Up to 42,000 IOPS

Performance may vary based on system hardware & configuration
Sequential Bandwidth Reads: Up to 560 MB/s Sequential

Writes: Up to 520 MB/s Sequential

Performance may vary based on system hardware & configuration
MTBF 1.5 Million Hours
TBW This 4TB Samsung EVO 860 SSD is rated at 2,400 TeraBytes Written
Data Encryption  
Encryption AES 256-bit Encryption (Class 0) TCG/Opal IEEE1667 (Encrypted drive)
Temperature Operating: 0 ~ 70° C
Shock Rating 1.500G / 0.5ms (Half Sine)
Power Consumption Typical: 3.0W
Burst Mode: 4.0W
Dimensions & Weight  
Dimensions 100.1 x 69.9 x 6.9mm
Weight 95.3g
  1. Actual formatted capacity will be less than shown, depending on the type of formatting and partitioning, operating system selection, etc.