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Manufacturer: SK Hynix Last updated: 2026-09-14
SK Hynix HMCG78MEBEA081N 16GB Review
SK hynix HMCG78MEBEA081N is a 16GB DDR5-4800 ECC UDIMM, an SK hynix OEM tray part with on-die ECC at the JEDEC-baseline speed.
16GB, DDR5-4800, 1Rx8, and ECC decode from the part number and match the product image label. This is the baseline-speed ECC sibling to the faster HMCG78AGBEA081N (DDR5-5600 ECC) elsewhere in this catalog.
What we can and can't verify
HMCG78MEBEA081N is an ECC UDIMM at 16GB/1Rx8; MEB maps to the JEDEC-baseline 4800MT/s bin. No published CAS latency.
Compatibility
Requires a motherboard and CPU that support ECC UDIMM; runs at JEDEC DDR5-4800 defaults.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Workstation builds wanting ECC reliability on baseline-speed boards
- 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 | 38.4 GB/s |
|---|---|
| Brand | SK hynix |
| Part Number | HMCG78MEBEA081N |
| Series | SK hynix OEM Memory |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 16 GB |
| Speed | 4800 MT/s |
| CAS Latency | 40 |
| 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 | 4800 MT/s |
|---|---|
| True Latency | 16.7 ns |
Overclocking profile
| Rated Voltage | 1.1 V |
|---|
Silicon
| Memory IC | Undisclosed |
|---|---|
| ECC | Yes |
FAQs
What are the key specifications of the SK Hynix HMCG78MEBEA081N 16GB?
The SK Hynix HMCG78MEBEA081N 16GB is a memory kit from SK Hynix. Key specs: DDR Generation DDR5, Capacity 16GB, Module Count 1, Speed 4800MT/s (decoded from part number), Rank Configuration 1Rx8 (Single Rank, x8).
Will the SK Hynix HMCG78MEBEA081N 16GB work with my current setup?
The SK Hynix HMCG78MEBEA081N 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 HMCG78MEBEA081N 16GB best suited to?
Best suited to: Workstation builds wanting ECC reliability on baseline-speed boards; Small server or NAS builds with ECC-capable boards.
What are the drawbacks of the SK Hynix HMCG78MEBEA081N 16GB?
Not the best fit for: Gaming builds with no ECC requirement; Boards that don't support ECC UDIMM.