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Product Information

Version: 2.0.0Built Date: 02/09/2026

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About this product

Capacity: 256GB (2x128GB) --- Technology: DDR5 --- Speed: PC5-38400 4800MHz CL40 --- ECC Type: ECC Registered --- Form Factor: 288-Pin ECC DIMM (RDIMM) --- Voltage: 1.1V --- Backward Compatibility: Also compatible with 4400MHz --- Replacement For: Cisco UCS-MR128G4RE1, UCS‐MR128G4RE1; Dell AC449974, SNPMMWR9C/128G; HP P43334-B21, P46972-H21, P50313-B21, P58360-H21, P62605-B21, P63345-B21; Hynix HMCT04MEERA, HMCT04MEERA129N, HMCT04MEERA131N, HMCT04MEERA133N, HMCT04MEERA135N; Lenovo 4X71M22551, 4X77A77034, 4X77A81443; Samsung M321RAGA0B20-CWK; Supermicro MEM-DR512L-SL01-ER48, MEM-DR512MH-ER48 --- OWC DDR5 memory is Fully compliant with JEDEC specifications, ROHS compliant, providing a warranty safe upgrade. OWC Memory is the most cost effective and simple DIY upgrade you can install to unleash your Mac or PC's full potential and speed up overall responsiveness. Become a multitasking maven when you upgrade your Mac or PC with OWC Memory. Open more apps. Open larger files. Plus, work with multiple files all at the same time. We test every OWC memory module at our in house lab so you can upgrade with the confidence that your memory is built to last. We built your OWC Memory upgrade to meet or exceed the toughest industry specs to provide years of worry-free service. OWC recommends that all DIMMs be the same capacity, speed, and manufacturer to ensure optimal memory performance.
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OWC 256GB DDR5 RAM

Upgrade your workstation or server with the OWC 256GB DDR5 RAM. This powerful memory kit includes two 128GB modules, boasting a speed of 4800MHz and a CL40 latency. Designed for high-performance environments, it features ECC (Error-Correcting Code) technology, ensuring data integrity and reliability for critical applications. The 4Rx4 configuration enhances memory bandwidth, making it ideal for demanding tasks in workstations, servers, and NAS systems. With its sleek black chips, this RAM not only performs exceptionally but also adds a touch of style to your setup. Elevate your system's capabilities with OWC!

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