# Cheapest 128 GB DDR5 server RAM (ECC RDIMM)

[All sizes of DDR5 server RAM (ECC RDIMM) →](https://sharpest.ai/per-unit/ddr5-server-ram-ecc-rdimm)

 Amazon **$4,990 /kit** typical $5,097 · 3 listings [Buy on Amazon: $4,990 for 1 kit →](https://www.amazon.com/dp/B0D2LZKK41?tag=sharpestai-20) as of 2026-11-06 21:38:44 UTC

 eBay **—** Not enough new listings yet; checked daily[Used & new memory (ram) on eBay →](https://sharpest.ai/ram)

Amazon prices are before shipping (free on most items with Prime); eBay prices include shipping. We earn a commission when you buy through these links, at no cost to you.

## All 3 listings, single kits first, then multipacks

 Amazon (3)

|  | Item | Size | Price | Per kit |  |
|---|---|---|---|---|---|
|  | Samsung 128GB DDR5 4800MHz PC5-38400 ECC RDIMM 4Rx4 2S2Rx4 (EC8 10x4) Quad Rank 1.1V Registered DIMM 288-Pin Server RAM… 1 kit | 1 kit | $4,990 | $4,990 | [Amazon →](https://www.amazon.com/dp/B0D2LZKK41?tag=sharpestai-20) |
|  | NEMIX RAM 128GB (2X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT Compatibl… 1 kit | 1 kit | $5,097 | $5,097 | [Amazon →](https://www.amazon.com/dp/B0CMR222VN?tag=sharpestai-20) |
|  | 128GB 8X16GB DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN ECC Registered RDIMM KIT NEMIX RAM Server Memory Compatible … 1 kit | 1 kit | $5,355 | $5,355 | [Amazon →](https://www.amazon.com/dp/B0GSRRSXNR?tag=sharpestai-20) |

Amazon as of 2026-11-06 21:38:44 UTC: Amazon's own price, else its lowest new offer, before shipping and tax (via Keepa); product prices and availability are accurate as of the date/time indicated and are subject to change.

Size comes from the seller's unit count or the listing title; check the listing before buying. As an Amazon Associate and eBay Partner, Sharpest earns from qualifying purchases.

## More memory (ram)

[DDR5 desktop RAM $8.12/GB](https://sharpest.ai/per-unit/ddr5-desktop-ram)[DDR4 laptop RAM (SODIMM) $3.75/GB](https://sharpest.ai/per-unit/ddr4-laptop-ram-sodimm)[DDR4 desktop RAM $3.12/GB](https://sharpest.ai/per-unit/ddr4-desktop-ram)[DDR4 server RAM (ECC RDIMM) $4.99/GB](https://sharpest.ai/per-unit/ddr4-server-ram-ecc-rdimm)[DDR5 laptop RAM (SODIMM) $10.31/GB](https://sharpest.ai/per-unit/ddr5-laptop-ram-sodimm)

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As of 2026-11-06. Canonical page: https://sharpest.ai/per-unit/ddr5-server-ram-ecc-rdimm/128gb