Home › DDR3 RAM › OFFTEK 4GB Replacement Memory RAM Upgrade for IBM-Lenovo Essential B50-80 (DDR3-12800) Laptop Memory
OFFTEK 4GB Replacement Memory RAM Upgrade for IBM-Lenovo Essential B50-80 (DDR3-12800) Laptop Memory
£23.38 £5.85/GB
19% cheaper per GB than the average 4GB DDR3 kit we track.
Laptop DDR3
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Specification
| Capacity | 4GB |
| Generation | DDR3 |
| Speed | 1600MHz |
| Form factor | SO-DIMM |
| For | Laptop |
| Brand | OFFTEK |
| ASIN | B06XKCHB3F |
Price history
Typical price (median) 90-day £23.40 12-month £23.35 12-month low £17.29 All-time low £13.34 (2023-10-21)
Not really a deal Today’s price is 0% above this kit’s typical price for the past year, and it has been cheaper than this for 61% of that year (last on 28 Jul 2026). Why medians, not averages ›
30-day avg £23.4090-day avg £23.35180-day avg £23.34 (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 | |
|---|---|---|---|---|---|---|---|---|---|
 | £2.00best £/GB | £8.00 | 4GB | SK Hynix | Mac | DDR3 | SO-DIMM 1600MHz | Non-ECCUnbuffered | |
 | £2.90 | £11.59★ | 4GB | EbidDealz | Laptop | DDR3 | SO-DIMM 1600MHz | Unbuffered | |
 | £3.03 | £12.10★ | 4GB | SK Hynix | Server | DDR3 | SO-DIMM 1600MHz | ECCUnbuffered | |
 | £3.25 | £12.99▼ 7% | 4GB | Timetec | Laptop | DDR3 | SO-DIMM 1066MHz | Non-ECCUnbuffered | |
 | £3.68 | £14.70★ | 4GB | SK Hynix | Laptop | DDR3 | SO-DIMM 1333MHz | Unbuffered | |
 | £3.75 | £14.99 | 4GB | Hypertec | Laptop | DDR3 | SO-DIMM 1600MHz | Non-ECCUnbuffered |
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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