Hynix 4GB (1x4GB) DDR4 Sodimm 2400MHz 260 Pin HMA851S6CJR6N-UH
£39.75 £9.94/GB
3% cheaper per GB than the average 4GB DDR4 kit we track.
▼ 17% below 90-day median Laptop DDR4 Unbuffered
Buy on Amazon.co.uk
Specification
| Capacity | 4GB |
| Generation | DDR4 |
| Speed | 2400MHz |
| Form factor | SO-DIMM |
| Buffered | Unbuffered |
| For | Laptop |
| Brand | SK Hynix |
| ASIN | B07FN2DPVY |
Price history
Typical price (median) 90-day £47.70 12-month £42.90 12-month low £34.95 All-time low £34.95 (2021-08-13)
Middling Today’s price is 7% below this kit’s typical price for the past year, and it has been cheaper than this for 55% of that year (last on 16 Apr 2026). Why medians, not averages ›
30-day avg £47.7090-day avg £47.70180-day avg £46.95 (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 | |
|---|---|---|---|---|---|---|---|---|---|
 | £6.38best £/GB | £25.51 | 4GB | Karmatech | Laptop | DDR4 | SO-DIMM 3200MHz | Unbuffered | |
| £6.66 | £26.62 | 4GB | Karmatech | Laptop | DDR4 | SO-DIMM 3200MHz | Unbuffered | |
 | £7.50 | £30.00 | 4GB | GLOBAL MEMORY | Laptop | DDR4 | SO-DIMM 2133MHz | Unbuffered | |
 | £7.50 | £30.00 | 4GB | GLOBAL MEMORY | Laptop | DDR4 | SO-DIMM 2400MHz | Unbuffered | |
 | £7.50 | £30.00 | 4GB | GLOBAL MEMORY | Mac | DDR4 | SO-DIMM 2400MHz | Unbuffered | |
 | £7.50 | £30.00 | 4GB | GLOBAL MEMORY | Mac | DDR4 | SO-DIMM 2666MHz | Unbuffered |
As an Amazon Associate we earn from qualifying purchases. Price and availability shown are as of the last update and may change on Amazon.