64GB DDR4-2666 RDIMM — used server RAM prices

As of October 1, 2026, a used 64GB DDR4-2666 RDIMM costs $6.25/GB shipped ($400 a stick) at the low end of eBay's market: one in ten of the 82 live single-stick listings ask that or less. The median ask is $8.44/GB. The low end was $4.79/GB on Jul 5, so it's up 30% since.

Registered ECC memory (RDIMM) rated at 2666 MT/s — sellers also list this speed as PC4-21300 or 2666V. 64GB sticks fit DDR4 server platforms (Xeon E5 v3/v4, Xeon Scalable gen 1–2, EPYC Naples/Rome). Prices below include shipping. The low end is the 10th-percentile ask: one in ten single-stick listings ask that much per GB or less, so it's a price you can find near the top of a search sorted by price. It and the median come from single-stick, fixed-price listings only, so multi-stick lots and auction bids can't skew them. Refreshed from live eBay listings twice daily.

Price trend — $/GB, single sticks: asking prices vs real sold prices

50 cheapest live listings (fixed price, parts-only excluded)

eBay affiliate disclosure: The listing links below lead to eBay. DIMMsum may earn a commission if you make a purchase.

Compare interactively on the live $/GB scatter — median market lines, Pareto frontier, and every spec side by side.

64GB DDR4 RDIMM at other speeds

• 64GB DDR4-2933 RDIMM · low end $8.45/GB
• 64GB DDR4-3200 RDIMM · low end $11.09/GB

Other DDR4-2666 RDIMM capacities

• 8GB DDR4-2666 RDIMM · low end $4.38/GB
• 16GB DDR4-2666 RDIMM · low end $5.71/GB
• 32GB DDR4-2666 RDIMM · low end $4.91/GB