NEMIX RAM

NEMIX RAM 256GB DDR5-4800 ECC Registered RDIMM Server Memory Kit

A full 256GB of DDR5-4800 ECC Registered memory in a four-module kit spec-matched to SIENAD8 series server boards

$8,196.99*
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*Price sourced from Amazon.com. Last updated:Aug 17, 2026.Price and availability are subject to change — details.

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Overview

The NEMIX RAM 256GB kit targets a specific job: filling out a server or workstation with a large, stable pool of memory. Four 64GB modules make up the set, each a DDR5-4800 (PC5-38400) RDIMM with a 2Rx4 dual-rank layout, CL40 timing, and 1.10V operation. Those figures matter because server memory controllers expect an exact match of rank, voltage, and timing to recognize the full capacity and hold the rated speed. The kit is aimed at buyers running the SIENAD8-2L2T, SIENAD8UD2-2Q, SIENAD8UD3, or SIENAD8UD-2L2Q boards rather than general desktop upgraders.

Construction follows enterprise conventions. The 288-pin registered form factor buffers command and address signals so the memory controller carries less load, which is what allows every slot to run populated at full capacity. ECC support adds a layer of protection by correcting single-bit errors as they occur, an important safeguard for systems where an unplanned reboot or corrupted dataset has real cost. Practical ownership is straightforward but demands care up front: NEMIX advises consulting your system or motherboard manual for supported capacities and approved DIMM population order before purchase. A lifetime replacement warranty and free US-based support round out the package.

Key Features

EXACT-MATCH UPGRADE — 256GB (4X64GB) kit DDR5-4800 (PC5-38400), 2Rx4 ECC Registered RDIMM, 1.10V, CL40, 288-pin. The precise rank, voltage, and timing your system's memory controller expects, so it's recognized at full capacity and runs at its rated speed.

VERIFIED FITMENT — Compatible with the SIENAD8-2L2T / SIENAD8UD2-2Q / SIENAD8UD3 / SIENAD8UD-2L2Q motherboard. The RDIMM form factor this board requires. Spec-matched to your board's memory-population rules.

ENTERPRISE STABILITY — Registered (buffered) architecture offloads the memory controller so every slot runs fully populated at full capacity, while ECC catches and corrects single-bit errors on the fly — stopping silent data corruption and unplanned reboots before they reach production.

CHECK YOUR CONFIG — System and motherboard memory support varies by model. Consult your system or motherboard manual for supported capacities, approved DIMM population order, and installation steps before purchase.

LIFETIME SUPPORT — Backed by a lifetime replacement warranty and free US-based technical support.

Specifications

Brand
NEMIX RAM
Total Capacity
256GB (4 x 64GB)
Memory Type
DDR5
Speed
4800MHz (PC5-38400)
Form Factor
288-pin RDIMM
Rank
2Rx4 (dual rank)
Voltage
1.10V
CAS Latency
CL40
Error Correction
ECC Registered (buffered)
Compatibility
SIENAD8-2L2T / SIENAD8UD2-2Q / SIENAD8UD3 / SIENAD8UD-2L2Q
Warranty
Lifetime replacement

Frequently Asked Questions

No. These are ECC Registered RDIMMs designed for server and workstation platforms. Standard desktops require unbuffered non-ECC memory and will not accept these modules.
NEMIX lists compatibility with the SIENAD8-2L2T, SIENAD8UD2-2Q, SIENAD8UD3, and SIENAD8UD-2L2Q boards. Check your motherboard manual to confirm supported capacities before buying.
The kit includes four modules of 64GB each, totaling 256GB. Every module is a DDR5-4800 2Rx4 ECC Registered RDIMM rated at CL40 and 1.10V.
Registered buffering eases load on the memory controller so all slots can run fully populated, while ECC detects and corrects single-bit errors to prevent silent data corruption and unplanned reboots.
Likely yes. NEMIX advises consulting your system or motherboard manual for the approved DIMM population order and installation steps before purchase, since population rules vary by board.
The kit carries a lifetime replacement warranty and includes free US-based technical support.