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Manufacturer: SK Hynix Last updated: 2026-09-14
SK Hynix HMCG78AGBEA081N 16GB Review
SK hynix HMCG78AGBEA081N is a 16GB DDR5-5600 ECC UDIMM, an SK hynix OEM tray part with on-die ECC for workstation and small-server use.
16GB, DDR5-5600, and ECC are confirmed from the part number and product image label (the E in EA081N marks ECC). CAS latency and any overclock support aren't published, standard for this OEM ECC UDIMM channel.
What we can and can't verify
HMCG78AGBEA081N is an ECC UDIMM variant of SK hynix's HMCG78 16GB DDR5-5600 desktop family, adding error-correction over the standard non-ECC HMCG78AGBUA084N in this catalog. No published CAS latency or overclock profile.
Compatibility
Requires a motherboard and CPU that support ECC UDIMM (most workstation and some consumer AM5 boards do); runs at JEDEC DDR5-5600 defaults.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Workstation builds wanting ECC reliability at consumer UDIMM pricing
- Small server or NAS builds with ECC-capable boards
Not for
- Gaming builds with no ECC requirement
- Boards that don't support ECC UDIMM
Specifications
What these specs meanIdentity
| Peak Bandwidth | 44.8 GB/s |
|---|---|
| Brand | SK hynix |
| Part Number | HMCG78AGBEA081N |
| Series | SK hynix OEM Memory |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 16 GB |
| Speed | 5600 MT/s |
| CAS Latency | 46 |
| Module Count | 1 |
Physical
| Form Factor | DIMM |
|---|
Module and platform
| RAM Segment | Server/ECC |
|---|
Capacity
| Capacity Per Module | 16 GB |
|---|---|
| Ranks Per Module | 1R |
Speed and timings
| Rated Speed | 5600 MT/s |
|---|---|
| True Latency | 16.4 ns |
Overclocking profile
| Rated Voltage | 1.1 V |
|---|
Silicon
| Memory IC | Undisclosed |
|---|---|
| ECC | Yes |
FAQs
What are the key specifications of the SK Hynix HMCG78AGBEA081N 16GB?
The SK Hynix HMCG78AGBEA081N 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 HMCG78AGBEA081N 16GB work with my current setup?
The SK Hynix HMCG78AGBEA081N 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 HMCG78AGBEA081N 16GB best suited to?
Best suited to: Workstation builds wanting ECC reliability at consumer UDIMM pricing; Small server or NAS builds with ECC-capable boards.
What are the drawbacks of the SK Hynix HMCG78AGBEA081N 16GB?
Not the best fit for: Gaming builds with no ECC requirement; Boards that don't support ECC UDIMM.