OFFTEK 2GB Replacement Memory RAM Upgrade for Alienware X51 (DDR3-12800 - Non-ECC) Desktop Memory
8% cheaper per GB than the average 2GB DDR3 kit we track.
Specification
| Capacity | 2GB |
| Generation | DDR3 |
| Speed | 1600MHz |
| Form factor | DIMM |
| ECC | Non-ECC |
| For | Desktop |
| Brand | OFFTEK |
| ASIN | B00978BY2Y |
Price history
Typical price (median) 90-day £15.88 12-month £15.94 12-month low £15.82 All-time low £9.64 (2023-04-01)
Dear for the market Today’s price is 31% above this kit’s typical price for the past year, and it has been cheaper than this for 10% of that year (last on 16 Jun 2026). At £10.45/GB it is dear against the £5.84/GB typical for DDR3 today. Why medians, not averages ›
30-day avg £15.8890-day avg £15.91180-day avg £15.91 (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 | |
|---|---|---|---|---|---|---|---|---|---|
 | £2.25best £/GB | £4.50★▼ 51% | 2GB | Integral | Desktop | DDR3 | DIMM 1600MHz | - | |
 | £2.37 | £4.74★▼ 46% | 2GB | Plyisty | Desktop | DDR3 | DIMM 1333MHz | - | |
 | £3.00 | £5.99 | 2GB | Qumox | Desktop | DDR3 | DIMM 1333MHz | - | |
| £4.66 | £9.32 | 2GB | POENVFPO | Desktop | DDR3 | DIMM 1333MHz | - | |
 | £8.34 | £16.67▼ 24% | 2GB | V7 | Server | DDR3 | DIMM 1333MHz | - | |
 | £9.00 | £18.00 | 2GB | GLOBAL MEMORY | Desktop | DDR3 | DIMM 1600MHz | - |
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.
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