MZILS400HEGR0D3 Samsung 400GB SAS 12GBPS 2.5inch SSD

MZILS400HEGR0D3 Overview

The Samsung PM1635a 400 GB SSD (model MZILS400HEGR0D3) is an enterprise-class, 2.5-inch SAS drive designed for data center applications requiring a balance of performance, reliability, and endurance. It uses a 12 Gbps SAS interface, which is well-suited for high-throughput environments, and supports mixed-use workloads typically found in server and storage deployments.
This drive is built with TLC V-NAND, offering a good compromise between storage density and endurance. According to official specs, it supports up to 3 DWPD (Drive Writes Per Day) over its rated lifespan (5 years), making it a solid choice for enterprise workloads.
Performance-wise, the PM1635a 400 GB model delivers sequential read speeds of up to 940 MB/s and sequential write speeds of around 620 MB/s.