A-Tech 4GB DDR3L 1333 ECC UDIMM 2Rx8 1.35V server RAM

Server-grade ECC UDIMM for DDR3L systems

This 4 GB A-Tech module runs at DDR3L 1333 (PC3L 10600) with CL9 latency and 1.35 V operation. It is an unbuffered ECC DIMM built as a direct replacement for the Crucial CT51272BD1339 part. The 2Rx8 organisation suits workstations and entry servers that require error correction without registered buffering.

Low-voltage DDR3L keeps thermals modest

Operating at 1.35 V reduces power draw compared with standard 1.5 V DDR3, so the module runs cooler in densely populated memory channels. Unbuffered ECC adds minimal overhead, keeping latency low for typical server workloads. No active cooling is required on the DIMM itself under normal airflow.

240-pin DIMM fits standard DDR3L slots

The module uses the 240-pin DDR3 form factor keyed for low-voltage operation, preventing insertion into incompatible 1.5 V slots. Major-brand DRAM chips are used throughout and each stick is tested before shipping. Builders needing higher capacities or registered DIMMs should look elsewhere, as this is a single 4 GB unbuffered unit.