Samsung 870 EVO 4TB 2.5" SATA SSD

4TB of SATA flash with a 4GB DRAM cache, rated for 2,400TB written over its warranty.

Quick Specs

• 4TB, 2.5" SATA 6Gb/s
• Up to 560MB/s read, 530MB/s write
• Samsung V-NAND 3-bit MLC, MKX controller
• 4GB LPDDR4 DRAM cache
• 2,400 TBW, 5 year warranty

Replace a hard drive without losing capacity

At 4TB, the 870 EVO can take over from a mechanical data drive in a desktop, or turn a laptop with a single 2.5" bay into a machine with room for a full photo and game library. Speeds sit at the SATA ceiling of up to 560MB/s read and 530MB/s write with Intelligent TurboWrite, and the 4GB DRAM cache keeps performance steady even when the drive is close to full. The 2,400 TBW rating is double the 2TB model's, so heavy daily writes are well within its design.

When to choose something else

SATA tops out around 560MB/s, so if you have a spare M.2 NVMe slot, an NVMe drive will be several times faster for loading and file transfers. For pure archive storage where speed doesn't matter, a hard drive still costs less per terabyte. The 870 EVO is the right pick for SATA-only laptops, older desktops, and NAS or video recording devices on Samsung's compatibility list. No cables or mounting kit are included.

FEATURES:

• Sequential speeds up to the SATA limit with Intelligent TurboWrite
• 4GB Low Power DDR4 DRAM cache
• 2,400 TBW endurance rating
• Compatibility tested with major chipsets, motherboards and NAS
• Samsung Magician for health tracking, firmware updates and data migration

SPECIFICATIONS:

• Model: Samsung 870 EVO (MZ-77E4T0BW)
• Capacity: 4TB
• Form factor: 2.5"
• Interface: SATA 6Gb/s (backward compatible with SATA 3Gb/s and 1.5Gb/s)
• NAND: Samsung V-NAND 3-bit MLC
• Controller: Samsung MKX
• DRAM cache: 4GB Low Power DDR4 SDRAM
• Sequential read: Up to 560MB/s
• Sequential write: Up to 530MB/s
• Random read (4KB, QD32): Up to 98,000 IOPS
• Random write (4KB, QD32): Up to 88,000 IOPS
• Random read (4KB, QD1): Up to 13,000 IOPS
• Random write (4KB, QD1): Up to 36,000 IOPS
• Endurance: 2,400 TBW
• Power: 2.5W average, 5.0W maximum, 35mW idle
• Encryption: AES 256-bit (Class 0), TCG/Opal, IEEE1667
• MTBF: 1.5 million hours
• Operating temperature: 0°C to 70°C
• Dimensions: 100 x 69.85 x 6.8mm
• Weight: Approx. 48g
• Warranty: 5 Year limited or 2,400 TBW, whichever comes first

WHAT'S IN THE BOX:

• 1x Samsung 870 EVO 4TB SSD
• Warranty statement (no installation kit included)

Why Samsung?

Samsung builds the NAND, controller, DRAM and firmware in its SSDs itself, and the EVO SATA line has been a standard upgrade drive for years. The 870 EVO is backed by a 5 year limited warranty or 2,400 TBW.