Crucial CT16G4RFD4266 16 GB DDR4 2666 MT/s (PC4-21300) CL19 DR x 4 ECC Registered DIMM 288-Pin Memory
Price not confirmed for 49 days. Amazon has not confirmed this price since 17 Sep 2026 (49 days ago), so check the current price on Amazon. Amazon stopped returning this item through its price feed, so we cannot check it automatically; the £/GB figure and the history below are from the last price we saw.
Specification
| Capacity | 16GB |
| Generation | DDR4 |
| Speed | 2666MHz |
| Form factor | DIMM |
| ECC | ECC |
| Buffered | Buffered |
| For | Server |
| Brand | Crucial |
| ASIN | B01N9JOE2K |
Price history
Typical price (median) 90-day £179.16 12-month £183.93 12-month low £114.32 All-time low £42.92 (2024-10-09)
12-month low Today’s price is 100% below this kit’s typical price for the past year, and it has been cheaper than this for 19% of that year (last on 28 Nov 2025). Why medians, not averages ›
30-day avg £152.2390-day avg £175.29180-day avg £200.25 (averages are pulled up by price spikes; the medians above are the better guide)
Cheaper per GB in the same spec
Same generation, capacity and form factor as this kit, ranked by £/GB. See all ›
| £/GB | Price | Capacity | Manufacturer | For | Type | Form Factor | ECC / Buffered | Description | |
|---|---|---|---|---|---|---|---|---|---|
 | £4.37best £/GB | £69.90▼ 5% | 16GB | Samsung | Server | DDR4 | DIMM 2666MHz | ECC | |
 | £4.57 | £73.05 | 16GB (2x8GB) | Glowster | Desktop | DDR4 | DIMM 3200MHz | - | |
 | £5.31 | £85.00 | 16GB | GLOBAL MEMORY | Desktop | DDR4 | DIMM 2133MHz | - | |
 | £5.31 | £85.00 | 16GB | GLOBAL MEMORY | Desktop | DDR4 | DIMM 2400MHz | - | |
 | £5.31 | £85.00 | 16GB | GLOBAL MEMORY | Desktop | DDR4 | DIMM 2933MHz | - | |
 | £5.31 | £85.00 | 16GB | GLOBAL MEMORY | Desktop | DDR4 | DIMM 3200MHz | - |
About this kit
- Process data at speeds up to 2933 MT/s
- 100 percent component and module tested to mission-critical server standards
- Optimised for the latest Intel Xeon processor product families
- Compatible with OEM servers and warranties
- Backed by the Reliance program
Product Description Buying new servers is expensive. Getting more out of your current infrastructure isn’t. By maximising a server’s installed memory capacity with Crucial RDIMMs, you can quickly and affordably make your network faster and more efficient. Get more out of your IT budget with Crucial RDIMMs, which speed up server applications and allow you to run more virtual machines, all while increasing overall system reliability with ECC parity. Designed for leading platforms, compatible with OEM systems and warranties, Crucial RDIMMs make it easy to maximize server deployments by maximising memory capacity. Manufacturer's Description MK1U8 Box Contains Crucial CT16G4RFD4266 16GB DDR4-2666 RDIMM
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