Sell Your 16GB DDR4-2666 ECC UDIMM
Updated July 7, 2026
per unit, non-binding indicative range
Non-binding — firm quote in 4 business hours.
What condition pays what
| Condition | Means | Pays |
|---|---|---|
| New sealed | Factory or anti-static seal intact | $39–$49 |
| Used, working | Pulled from a working system, label intact | $34–$43 |
| Untested | Revised up if it passes our bench | $27–$34 |
| Damaged | Bent pins, burns, cracked PCB — we'll say no politely | declined |
What each brand pays
Brand changes what used memory are worth — Samsung sets the benchmark, then the other tier-one makers, and value brands pay a little less. We still buy every brand on this list.
| Brand | Indicative payout |
|---|---|
| Samsungbest price | $34–$43 |
| SK Hynix Tier-1 OEM DRAM; near-Samsung liquidity in the server channel. | $33–$41 |
| Micron Tier-1 OEM DRAM; strong data-center demand. | $32–$40 |
| Crucial Micron's retail arm — genuine Micron silicon, thinner enterprise resale. | $30–$38 |
| Kingston Reliable, high-volume module maker; softer resale premium than the OEM three. | $29–$36 |
| Corsair Enthusiast/desktop brand; limited server-channel demand. | $27–$34 |
| G.Skill Enthusiast/desktop brand; limited server-channel demand. | $27–$34 |
| ADATA Value module maker; lower used-market liquidity. | $26–$33 |
| Third-party Nemix, A-Tech, Timetec and similar third-party assemblers — we still buy, at a lower payout. | $22–$28 |
| Unknown Unbranded or unidentifiable modules; priced conservatively, still purchased. | $20–$26 |
Ranges are non-binding and scaled from the Samsung benchmark for this exact spec — your firm quote comes by email within 4 business hours.
What this module is
A 16GB DDR4 registered ECC unbuffered ECC DIMM at 2666 MT/s (PC4-21300), a workhorse capacity for Skylake and Cascade Lake-era servers. Registered DDR4 held its bid through the 2025-26 memory crunch; with fabs pivoting to DDR5, clean modules like this keep clearing within days. The most liquid stock is Samsung, SK Hynix, and Micron; we grade every stick on the bench and pay from the measured spec. Common part numbers include M391A2K43BB1-CTD.
Part numbers we buy
- Unknown: M391A2K43BB1-CTD
Don't see yours? Paste it into the quote form — we match variants daily.
How it works
- Firm quote by email within 4 business hours (Mon–Sat 8–6 ET).
- Ship free with our prepaid label — postmark within your lock window.
- Paid by Zelle, PayPal, or check within 48 hours of testing.
If testing disagrees with your description, you get photo evidence and a choice: revised offer or free return.
Questions
How much is a 16GB DDR4-2666 ECC UDIMM worth in 2026?
Our current indicative payout is $34-$43 per unit in used working condition, with the firm number emailed within 4 business hours of your quote request. The range moves with the market — the Payout Index shows what we actually paid over the trailing 30 days.
Will a module pulled from a working server count as "used, working"?
Yes — pulled-from-working with an intact label and clean pins is exactly our base grade, quoted at the full range shown. Our bench verifies with an SPD read and a MemTest pass, and the measured spec always wins over the sticker.
Do I need to wipe RAM before selling it?
No — DRAM is volatile and loses its contents at power-off, so there is nothing to wipe by the time it reaches us. Storage is different: every SSD and laptop we buy is erased to NIST 800-88 with a free emailed certificate.
What if I have more than eight sticks?
Quantity helps you: 8+ identical modules earn +3%, 32+ earn +6%, and pallet-scale lots go through our business desk with a manifest quote and New England pickup available.
How fast do I actually get paid?
Zelle or PayPal within 48 hours of test completion; typical mail-to-money is 5-7 days end to end. Your quote locks before you ship, and if the market drops after we quote, we pay the quote anyway.