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Black 2.5 inch SATA internal SSD with 7mm height

SAMSUNG

SAMSUNG 870 EVO 4TB Internal SSD MZ-77E4T0B/AM

SKU CH-P1KS-5JW0Y MPN MZ-77E4T0B/AM

A 4TB 2.5-inch SATA III SSD with V-NAND, 4GB DDR4 cache and AES 256 encryption delivering 560 MBps read and 530 MBps write speeds for 2400 TBW endurance

  • Device TypeInternal Solid State Drive (SSD)
  • Used ForConsumer
  • Form Factor2.5"
  • Capacity4TB
  • Memory ComponentsV-NAND
  • InterfaceSATA III

Options 4TB

  • SATA III sequential reads up to 560 MBps for fast boot and load times
  • SATA III sequential writes up to 530 MBps to accelerate large file transfers
  • AES 256-bit encryption with TCG/Opal 2.0 and IEEE 1667 support protects stored data
  • 2400 TBW endurance rating sustains heavy workloads such as 8K video editing
  • 1,500,000-hour MTBF and 1500 G shock rating deliver long-term reliability

4TB SATA III internal SSD

The Samsung 870 EVO 4TB is a 2.5 inch internal solid state drive built for consumer PCs and compatible host systems. It uses V-NAND memory and a SATA III interface to deliver up to 560 MBps sequential read and 530 MBps sequential write speeds. A 4GB low power DDR4 cache supports sustained write performance. Hardware AES 256 encryption meets TCG Opal 2.0 and IEEE1667 standards.

Thermal and power profile in normal use

The drive has no moving parts and operates silently within a 7.00mm z-height. Power draw stays low during typical desktop workloads thanks to the low power DDR4 cache and efficient controller. Shock resistance is rated at 1500 G for 0.5 ms half sine, protecting data in portable or mobile installations. MTBF is specified at 1500000 hours.

Sustained load behaviour and endurance

Under continuous heavy writing the variable buffer helps maintain high throughput without rapid throttling. The drive is rated for 2400 TBW, supporting workloads such as 8K video processing and long-term archival. Compatibility testing covers major chipsets, motherboards, NAS units and video recording devices for reliable operation over extended periods.

Highlights

  • SATA III sequential reads up to 560 MBps for fast boot and load times
  • SATA III sequential writes up to 530 MBps to accelerate large file transfers
  • AES 256-bit encryption with TCG/Opal 2.0 and IEEE 1667 support protects stored data
  • 2400 TBW endurance rating sustains heavy workloads such as 8K video editing
  • 1,500,000-hour MTBF and 1500 G shock rating deliver long-term reliability

Specifications

BrandSAMSUNG
Series870 EVO Series
ModelMZ-77E4T0B/AM
Part NumberMZ-77E4T0B/AM
Device TypeInternal Solid State Drive (SSD)
Used ForConsumer
Form Factor2.5"
Capacity4TB
Memory ComponentsV-NAND
InterfaceSATA III
ProtocolSATA
CacheSamsung 4GB Low Power DDR4 SDRAM
EncryptionClass 0 (AES 256) TCG/Opal v2.0, MS eDrive (IEEE1667)
Max Sequential ReadUp to 560 MBps
Max Sequential WriteUp to 530 MBps
Terabytes Written (TBW)2400TB
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 2,400 TBW.
MORE COMPATIBLE THAN EVER - 870 EVO has been compatibilit
Height7.00mm
Width70.00mm
Depth100.00mm
Shipping weight0.09 kg
Package size142 × 98 × 19 mm

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Questions about this item

How do I install the 2.5-inch SATA III SSD in a desktop, and what step is often missed?

Mount the 7.00 mm high drive in a 2.5-inch bay, connect the SATA data and power cables, then enable AHCI mode in BIOS so the SATA III interface runs at full speed.

What maintenance or replacement will the 4TB V-NAND drive need over its life?

No mechanical maintenance is required; the drive is rated for 2400 TBW and 1500000 hours MTBF, so replacement is only needed if the write endurance or hours limit is reached.

What limit appears first during sustained heavy writes on this SATA III model?

The SATA III interface caps sequential writes at 530 MBps, so the interface ceiling is reached before the V-NAND or 4 GB DDR4 cache saturate.

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