SK Hynix 4GB DDR4 3200MHz PC4-25600 1.2V 1R x 16 SODIMM Laptop RAM Memory Module HMA851S6CJR6N-XN, OEM Package
4% cheaper per GB than the average 4GB DDR4 kit we track.
Specification
| Capacity | 4GB |
| Generation | DDR4 |
| Speed | 3200MHz |
| Form factor | SO-DIMM |
| ECC | Non-ECC |
| Buffered | Unbuffered |
| For | Laptop |
| Brand | SK Hynix |
| ASIN | B092RK7KLM |
Price history
Typical price (median) 90-day £29.50 12-month £29.95 12-month low £19.18 All-time low £13.57 (2025-05-27)
Not really a deal Today’s price is 32% above this kit’s typical price for the past year, and it has been cheaper than this for 31% of that year (last on 10 Mar 2026). Why medians, not averages ›
30-day avg £29.5090-day avg £32.09180-day avg £36.96 (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 |
About this kit
- Speeds up to 3200 MT/s and faster data rates are expected to be available as DDR4 technology matures
- Reduce power consumption by up to 40% and extend battery life
- Faster burst access speeds for improved sequential data throughput
- High Performance DDR4 laptop Memory designed for PC enthusiasts and gamers
- ECC Type = Non-ECC, Form Factor = SODIMM, Pin Count = 260-pin, PC Speed = PC4-25600, Voltage = 1.2V, Rank and Configuration = 1Rx16
HMA851S6CJR6N-XN Form Factor 260PIN SODIMM Total Capacity 4GB Specs DDR4 PC4-25600 Unbuffered NON-ECC DDR4-3200 1.2V Series SK Hynix Speed 3200 MHz Voltage 1.2V DIMM Type Unbuffered Component for laptops and All-in-one PC`s SK Hynix DDR4 SODIMMs Product Highlights Speeds start at 3200 MT/s Increase bandwidth by up to 30% Reduce power consumption by up to 40% and extend battery life Faster burst access speeds for improved sequential data throughput Optimized for next generation processors and platforms Available in modules up to 8GB and kits up to 32GB
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