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Rectangular 2.5 inch SATA SSD with black metal casing and label showing model MZ-77E2T0E

SAMSUNG

SAMSUNG MZ-77E2T0E 2.5" 2TB SATA internal SSD

SKU CH-20VT-RBE9F MPN MZ-77E2T0E

A 2.5 inch SATA SSD with 2TB capacity, Samsung V‑NAND 3bit MLC, 2 GB DDR4 cache, AES 256 encryption, up to 560 MBps read and 530 MBps write, rated 1.5 million hours MTBF

  • Total capacity2 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)
  • Enterprise-grade reliability with 1.5 million hours MTBF
  • Hardware AES 256 encryption plus TCG Opal 2.0 and IEEE1667 support
  • 2 GB DDR4 cache boosts sustained write performance
  • Sequential reads up to 560 MBps and writes up to 530 MBps
  • Low 35 mW idle power extends laptop battery life

Enterprise 2.5" SATA SSD

The Samsung MZ-77E2T0E is a 2TB internal solid state drive built for enterprise workloads. It uses Samsung V-NAND 3bit MLC memory and a 2 GB Low Power DDR4 SDRAM cache. The 2.5 inch form factor fits standard drive bays in servers and workstations.

SATA III throughput limits

The SATA III interface caps sequential reads at 560 MBps and writes at 530 MBps. Protocol overhead and host controller performance determine real-world speeds, so sustained transfers will sit below those peaks. Queue depth and command overhead also affect random I/O consistency.

Hardware encryption and shock rating

Hardware AES 256 encryption follows TCG Opal 2.0 and IEEE 1667 standards for data-at-rest protection. The drive withstands 1,500 G shock for 0.5 ms half-sine pulses, and idle power draws a maximum of 35 mW. A 1.5 million hour MTBF rating supports continuous operation.

How it compares

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

Price $171.99
Typical for this category: the median of 1,994 items is $180.49.
Total capacity 2 TB
Higher than about 70% 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 $86.00 per TB
Cheaper than about 91% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameSAMSUNG
Model nameMZ-77E2T0E
Part numberMZ-77E2T0E
Total capacity2 TB
Product typeInternal Solid State Drive (SSD)
Intended useEnterprise
Performance
Sequential read speedUp to 560 MB/s
Sequential write speedUp to 530 MB/s
Storage
NAND flash typeSamsung V-NAND 3bit MLC
Cache memorySamsung 2 GB Low Power DDR4 SDRAM
Data encryptionClass 0 (AES 256) TCG/Opal v2.0, MS eDrive (IEEE1667)
Connectivity
Connection protocolSATA
Ports & slots
Interface typeSATA III
Power
Idle power drawMax. 35 mW
* Actual power consumption may vary depending on system hardware & configuration
Size & build
Form factor2.5 in (6.35 cm)
Overall height0.27 in (0.69 cm)
Overall width3.94 in (10 cm)
Product depth2.75 in (6.99 cm)
Shipping weight1.07 kg
Package size152 × 127 × 76 mm
Environment & compliance
Max shock tolerance1,500 G & 0.5 ms (Half sine)
More details
Mean time between failures1.5 Million Hours Reliability (MTBF)

Questions about this item

Will this 2.5-inch SATA drive fit in my laptop drive bay?

The drive measures 3.94 inches wide, 2.75 inches deep and 0.27 inches high, matching the standard 2.5-inch SATA form factor used in most laptop bays.

Does the hardware encryption work with Windows BitLocker?

Yes, the drive supports MS eDrive IEEE 1667 and TCG Opal 2.0, allowing BitLocker to offload encryption to the controller without software overhead.

What sustained write speed should I expect for large video files?

Sequential write reaches up to 530 MBps; real-world throughput will be slightly lower depending on the host controller and file system overhead.

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