As of October 20, 2026, a used 16GB DDR4-2933 UDIMM costs $9.38/GB shipped ($150 a stick) at the low end of eBay's market: one in ten of the 24 live single-stick listings ask that or less. The median ask is $14.06/GB. The low end was $8.61/GB on Sep 4, so it's up 9% since.
Unbuffered ECC memory (ECC UDIMM — the ECC that fits desktop-socket boards, not interchangeable with RDIMMs) rated at 2933 MT/s — sellers also list this speed as PC4-23400 or 2933Y. 16GB sticks fit DDR4 ECC-capable desktop-socket boards (AM4 Ryzen on ASRock/ASUS boards and Ryzen PRO, Xeon E3 v5/v6 and E-2100/E-2200, C236/C246, and NAS units like Synology/QNAP). 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.
$9.38/GB
low-end ask, shipped: 1 in 10 at or under
$14.06/GB
median ask (single sticks, fixed price)
$9.18/GB
cheapest live $/GB
$147
cheapest single stick, shipped
40
live listings
Price trend — $/GB, single sticks
40 cheapest live listings (fixed price, parts-only excluded)
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