16GB DDR4-2666 RDIMM — used server RAM prices

As of October 2, 2026, a used 16GB DDR4-2666 RDIMM costs $5.71/GB shipped ($91.28 a stick) at the low end of eBay's market: one in ten of the 156 live single-stick listings ask that or less. The median ask is $7.78/GB. The low end was $3.56/GB on Jul 22, so it's up 60% since.

Registered ECC memory (RDIMM) rated at 2666 MT/s — sellers also list this speed as PC4-21300 or 2666V. 16GB 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.

16GB DDR4 RDIMM at other speeds

• 16GB DDR4-2133 RDIMM · low end $4.69/GB
• 16GB DDR4-2400 RDIMM · low end $5.00/GB
• 16GB DDR4-2933 RDIMM · low end $5.96/GB
• 16GB DDR4-3200 RDIMM · low end $7.81/GB

Other DDR4-2666 RDIMM capacities

• 8GB DDR4-2666 RDIMM · low end $4.38/GB
• 32GB DDR4-2666 RDIMM · low end $4.91/GB
• 64GB DDR4-2666 RDIMM · low end $6.25/GB