OFFTEK 16GB Replacement Memory RAM Upgrade for Dell Precision Workstation 5820 (Intel Xeon W-21xxx Models) (DDR4-21300 (PC4-2666) - Reg) Server Memory/Workstation Memory
6% dearer per GB than the average 16GB DDR4 kit we track.
Specification
| Capacity | 16GB |
| Generation | DDR4 |
| Speed | 2666MHz |
| Form factor | DIMM |
| ECC | ECC |
| Buffered | Buffered |
| For | Server |
| Brand | OFFTEK |
| ASIN | B0C544BYKG |
Price history
Typical price (median) 90-day £138.13 12-month £174.13 12-month low £46.57 All-time low £40.25 (2023-09-20)
Modest Today’s price is 13% below this kit’s typical price for the past year, and it has been cheaper than this for 22% of that year (last on 10 Dec 2025). Why medians, not averages ›
30-day avg £138.1390-day avg £147.37180-day avg £175.41 (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 | |
|---|---|---|---|---|---|---|---|---|---|
 | £3.67best £/GB | £58.72▼ 23% | 16GB (2x8GB) | Glowster | Desktop | DDR4 | DIMM 3200MHz | - | |
 | £4.37 | £69.90▼ 5% | 16GB | Samsung | Server | DDR4 | DIMM 2666MHz | ECC | |
 | £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
- Boost Your System’s Performance: Increase available memory for smoother multitasking, improved responsiveness and better performance when running memory-intensive applications.
- Matched Specifically to Your Machine: OFFTEK selects the correct memory configuration for the computer shown in this listing, removing the uncertainty from choosing a compatible upgrade.
- We Do the Technical Checking for You: There is no need to compare memory speeds, voltages, form factors or other technical details, as the upgrade has been matched to the machine’s supported requirements.
- Extend the Life of Your Computer: Increasing the available memory can help your existing machine remain productive for longer, offering a cost-effective alternative to replacing the complete system.
- Quick and Straightforward Upgrade: Memory is simple to install and requires no software installation; shut down and disconnect the machine before fitting and follow the manufacturer’s instructions.
- Tested for Dependable Performance: Every OFFTEK memory module is checked and tested at component and module level to support stable, reliable operation in everyday use.
- Matched Memory, Without the Guesswork: Receive the memory configuration selected on this listing, chosen specifically for the computer model shown to make upgrading simple and reassuring.
OFFTEK 16GB Replacement Memory RAM Upgrade for Dell Precision Workstation 5820 (Intel Xeon W-21xxx Models) (DDR4-21300 (PC4-2666) - Reg) Server Memory/Workstation Memory OFFTEK Part Number :- FT16MKR72V9P-2026341 Capacity :- 16GB Module Form Factor :- DIMM 288-pin Memory Type :- DDR4 SDRAM Bandwidth :- DDR4-21300 (PC4-2666) Memory Specs :- 288 Pin 1.2v DDR4 PC4-21300 ECC Registered Dimm Equivalent to OEM Part Number :- 2026341-DE-16384 Matched and Tested for Your Machine OFFTEK selects the correct memory configuration for your computer and checks every module to support stable, dependable everyday operation. Improve Performance and Extend System Life Increasing available memory can improve responsiveness and multitasking when memory capacity is limiting performance, helping your existing computer remain productive for longer and delaying the cost of replacing the complete system.
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