HMCG88MEBRA113N: SK hynix 32GB DDR5-4800MHz PC5-38400 ECC Registered CL40 1Rx4 RDIMM Server Memory
Also listed as: HMCG88MEBRA113N-AA, SK hynix 32GB DDR5 RDIMM, HMCG88MEBRA · made by SK hynix
The SK hynix HMCG88MEBRA113N is a 32GB single-rank (1Rx4) DDR5-4800 registered ECC memory module tailored for modern multi-core enterprise servers powered by Intel Sapphire Rapids and AMD Genoa architectures. Operating at 1.1V with CL40-39-39 timings, it incorporates dual 32-bit subchannels, on-die ECC, and an onboard Power Management IC (PMIC). When purchasing used DDR5 memory, inspect gold contact fingers for mechanical damage, verify that heat spreaders are undamaged, and avoid mixing differing memory ranks on the same channel.
Specifications
| Part number | HMCG88MEBRA113N |
|---|---|
| Brand | SK hynix |
| Made by | SK hynix |
| Type | Memory |
| Other numbers | HMCG88MEBRA113N-AA, SK hynix 32GB DDR5 RDIMM, HMCG88MEBRA |
| Status | current |
| Capacity (GB) | 32 |
| Speed | DDR5-4800 |
| Rank width | 1Rx4 |
| Generation fit | Intel 4th Gen Xeon Scalable and AMD EPYC 9004 series servers |
About the HMCG88MEBRA113N
HMCG88MEBRA113N is SK hynix's 32GB single-rank (1Rx4) DDR5-4800 registered ECC memory module for enterprise data centers. Operating at 1.1V standard JEDEC voltage with CL40 latency, it provides 38.4 GB/s peak bandwidth per module for servers based on 4th Gen Intel Xeon Scalable (Sapphire Rapids) and AMD EPYC 9004 (Genoa) processors, succeeding DDR4-3200 RDIMMs.
Compatibility
Compatible with enterprise servers supporting DDR5 RDIMMs, including Dell PowerEdge 16G, HPE ProLiant Gen11, Lenovo ThinkSystem V3, and Supermicro servers. It does not fit DDR4 server motherboards due to mechanical notch placement. To maintain optimal memory channel performance, do not mix single-rank (1Rx4) modules with dual-rank (2Rx4) modules on the same channel.
How to identify a genuine unit
The module features SK hynix DRAM chips on a green PCB with a barcode sticker reading HMCG88MEBRA113N, 32GB 1Rx4 PC5-4800B-RC0. The module has an integrated on-die PMIC in the center. In system BMC/IPMI inventories, it reports SK hynix manufacturer identification and standard JEDEC timings.
Buying used
Request diagnostic test reports (such as MemTest86+) verifying zero single-bit or multi-bit ECC error corrections. Check the 288-pin gold contact edge for mechanical gouging or peeled traces. Ensure that the onboard PMIC component is intact and free of signs of thermal stress.
Reference prices (last 14 days, updated 2026-10-27)
New: USD 125 (1 sighting, Oct 2026)
Used: USD 75 (1 sighting, Oct 2026)
All sightings
| Seller | Condition | Price | Note | Seen |
|---|---|---|---|---|
| serversupply.com | new | USD 125 | 2026-10-27 | |
| ebay.com | used | USD 75 | 2026-10-27 |
Prices seen on public listings on the dates shown, before tax and shipping. Not an offer.
Fits these models
Equivalent part numbers
- Lenovo 4X77A77495 ThinkSystem 32GB TruDDR5 4800MHz (1Rx4 1.1V) RDIMM ThinkSystem 32GB TruDDR5 4800MHz 1Rx4 RDIMM
- Dell AB949334 Dell 32GB DDR5 4800MHz 1Rx4 RDIMM
FAQ
What is the operating voltage of this DDR5 RDIMM?
1.1V standard JEDEC operating voltage.
What DRAM chip density is used on this module?
16Gb density DDR5 SDRAM components.
Buying or selling HMCG88MEBRA113N?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- SK hynix Server DDR5 RDIMM Product Catalog, checked 2026-10-27