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Manufacturer: SK Hynix Last updated: 2026-09-14
SK Hynix HMCG78AGBUA084N 16GB Review
SK hynix HMCG78AGBUA084N is a 16GB DDR5-5600 UDIMM, an SK hynix-branded OEM tray part built for system integrators rather than retail sale.
The 16GB capacity, DDR5 generation, and 5600MT/s speed decode from SK hynix's HMCG78 UDIMM part-numbering convention, confirmed against the product image label. CAS latency and any XMP/EXPO profile aren't published for this OEM part, so treat it as a functional-replacement stick, not a tuning kit.
What we can and can't verify
HMCG78 is SK hynix's 288-pin desktop UDIMM DDR5 family at the 16GB capacity tier; the AGB suffix maps to the 5600MT/s speed bin used across this catalog's confirmed HMCG78AGB siblings. No published CAS latency, sub-timings, or overclock profile.
Compatibility
Standard 288-pin desktop DIMM; runs at JEDEC DDR5-5600 defaults on any current Intel or AMD desktop board.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Replacing or matching factory SK hynix memory in a prebuilt desktop
- Single-stick 16GB upgrades at JEDEC speed
Not for
- Buyers who want a documented CAS latency or XMP/EXPO profile
- Overclocking-focused builds
Specifications
What these specs meanIdentity
| Peak Bandwidth | 44.8 GB/s |
|---|---|
| Brand | SK hynix |
| Part Number | HMCG78AGBUA084N |
| Series | SK hynix OEM Memory |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 16 GB |
| Speed | 5600MT/s (decoded from part number) |
| Module Count | 1 |
Physical
| Form Factor | Desktop DIMM (UDIMM) |
|---|
Module and platform
| RAM Segment | Desktop DDR5 |
|---|
Capacity
| Capacity Per Module | 16 GB |
|---|
Silicon
| Memory IC | SK hynix |
|---|---|
| ECC | No |
FAQs
What are the key specifications of the SK Hynix HMCG78AGBUA084N 16GB?
The SK Hynix HMCG78AGBUA084N 16GB is a memory kit from SK Hynix. Key specs: DDR Generation DDR5, Capacity 16GB, Module Count 1, Speed 5600MT/s (decoded from part number), RAM Segment Desktop DDR5.
Will the SK Hynix HMCG78AGBUA084N 16GB work with my current setup?
The SK Hynix HMCG78AGBUA084N 16GB lists DDR Generation is DDR5. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits. Our upgrade checker at /upgrade can confirm compatibility for common combinations.
Who is the SK Hynix HMCG78AGBUA084N 16GB best suited to?
Best suited to: Replacing or matching factory SK hynix memory in a prebuilt desktop; Single-stick 16GB upgrades at JEDEC speed.
What are the drawbacks of the SK Hynix HMCG78AGBUA084N 16GB?
Not the best fit for: Buyers who want a documented CAS latency or XMP/EXPO profile; Overclocking-focused builds.