
3% dearer per GB than the average 16GB DDR5 kit we track.
| Capacity | 16GB |
| Generation | DDR5 |
| Speed | 6400MHz |
| Form factor | SO-DIMM |
| ECC | Non-ECC |
| Buffered | Unbuffered |
| For | Laptop |
| Brand | SK Hynix |
| ASIN | B0H9YNFP86 |
30-day avg £275.0090-day avg £275.00180-day avg £275.00 All-time low £275.00 (2026-08-02)
Same generation, capacity and form factor as this kit, ranked by £/GB. See all ›
The SK Hynix HMCG78AHBVA327N-BA is a Premium 16GB DDR5 CSODIMM Memory module designed for compatible next-generation laptops, All-in-One computers and Mini PCs. Operating at 6400MHz with a PC5-51200 data rate, this high Performance RAM supports faster application loading, smoother multitasking and stronger responsiveness across demanding Professional workloads. Built in the compact 262-pin CSODIMM form factor, the module uses an integrated clock driver to improve signal integrity at higher DDR5 speeds. Its 1Rx8 single-rank configuration provides efficient System operation, while the unbuffered non-ECC design is suited to compatible consumer and Professional platforms that require high-speed, low-overhead Memory. Support for Intel XMP 3.0 allows compatible systems to access validated Performance profiles with simplified configuration through supported BIOS settings. The module is intended for platforms based on Intel Core Ultra Series 2 processors with Intel 800 series chipsets, helping modern compact systems achieve stable high-frequency DDR5 operation where standard SO-DIMM modules may not meet the required specification. With upcoming AMD EXPO 1.2 support planned for compatible platforms, this SK Hynix RAM offers broader potential across future high-speed mobile and compact desktop System designs. Its bandwidth is well suited to Gaming, Content Creation, data-heavy productivity, virtual machines and Professional software where Memory throughput can affect overall responsiveness. As a genuine SK Hynix component, the module combines Premium manufacturing standards with the efficiency expected from modern DDR5 Memory. It is suitable for upgrades, repairs and matched System builds, provided the host device explicitly supports DDR5-6400 CSODIMM technology. Compatibility should be checked carefully, as CSODIMM modules are not interchangeable with standard DDR5 SO-DIMM RAM.
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