Samsung 850 PRO 1TB 2.5″ SATA SSD (MZ-7KE1T0BW) – Up to 550MB/s, 3D V-NAND MLC, 300 TBW

Pro-grade MLC SATA storage for workstations that write heavily every day.

The Samsung 850 PRO 1TB is a 2.5-inch, 7mm SATA III SSD built with Samsung 3D V-NAND MLC and the MEX controller. Reading at up to 550MB/s and writing at up to 520MB/s, with a 300 TBW rating and AES 256-bit encryption, it suits professionals and workstations that need consistent performance.

Why MLC Flash Still Matters for Heavy SATA Workloads

Most modern SATA SSDs use TLC or QLC NAND, which rely on SLC caches to maintain write speed. Under sustained writes, such as large file copies or database work, those drives can slow significantly once the cache fills.

The 850 PRO uses MLC 3D V-NAND, which writes data faster natively and maintains consistent performance through long transfers. That makes it a strong choice for workstations, professional editing and systems that write heavily every day.

Consistent Workstation Performance

With up to 550/520MB/s sequential speeds and up to 100K random read IOPS, the 850 PRO delivers steady performance across sustained and mixed workloads.

Built for Durability and Security

A 300 TBW rating, 2-million-hour MTBF and AES 256-bit hardware encryption with TCG Opal support make it suited to professional environments. Samsung Magician manages firmware and health.

Setup Instructions

How to Install the Samsung 850 PRO 1TB

1. Back up data, then shut down and unplug the computer.
2. Mount the SSD in a 2.5-inch bay, adapter or laptop caddy.
3. Connect SATA data and power cables and secure the drive.
4. Migrate your OS with Samsung Data Migration or install fresh, then install Samsung Magician.