HMCG84MEBRA107N - 32GB DDR5-4800 ECC RDIMM | SK Hynix
MPN: HMCG84MEBRA107N ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $89 | $89.00 |
| 10 | $84.5 | $845.00 |
| 100 | $79 | $7,900.00 |
| 500 | $74 | $37,000.00 |
| 1,000 | $69.5 | $69,500.00 |
Drop-in alternatives for HMCG84MEBRA107N — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
HMCG88MEBRA107N
✅ Drop-In📋 Reference alternative (not in catalog)
HMCG84MEBRA174N
✅ Drop-In✓ In Stock
$165 / Unit
View Datasheet →HMCG84AGBRA191N
✅ Drop-In✓ In Stock
$103.2 / Unit
View Datasheet →HMCG78MEBRA113N
✅ Drop-In✓ In Stock
$94 / Unit
View Datasheet →HMCG78AEBRA107N
✅ Drop-In✓ In Stock
$399 / Unit
View Datasheet →A-Tech 32GB DDR5-4800 ECC RDIMM
✅ Drop-In📋 Reference alternative (not in catalog)
HMCG84MEBRA107N Maximum Ratings & Electrical Characteristics
| Memory Type | DDR5 SDRAM RDIMM |
| Capacity | 32 GB |
| Transfer Rate | 4800 Mbps (MT/s) |
| Bandwidth Rating | PC5-38400 |
| CAS Latency | CL40 |
| Operating Voltage | 1.1 V |
| Form Factor | 288-pin RDIMM (SDP-RDIMM) |
| Rank / Organization | 1Rx4 |
| ECC | Yes (registered ECC) |
| Registration | Registered (buffered address/command) |
| Packaging | Bulk |
| Application Class | Server / Data Center |
| Manufacturer | SK Hynix |
| On-module PMIC | Yes (DDR5 standard) |
HMCG84MEBRA107N standard Pin Configuration Guide
Complete pinout information for HMCG84MEBRA107N (standard package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for HMCG84MEBRA107N.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
HMCG84MEBRA107N is suitable for 6 applications: General-Purpose Rack Servers, Edge Compute Appliances, Virtualization Hosts, Workstation Memory Upgrades, Storage Controllers and Appliances, Test and Measurement Servers.
General-Purpose Rack Servers
The HMCG84MEBRA107N fits general-purpose 1U/2U rack servers that require 288-pin DDR5-4800 registered ECC memory. Its 32GB density at 4800 MT/s (PC5-38400) delivers balanced bandwidth and capacity for web serving, databases, and file services on Intel Xeon Scalable and AMD EPYC platforms. Eight modules per server yield 256GB with ECC protection and registered signaling that keeps the memory controller within load limits at full slot population. Because the DDR5 PMIC is on-module, the host board needs only a 1.1V-compliant slot, simplifying platform power design versus DDR4 generation servers.
Recommended
Edge Compute Appliances
Edge compute nodes benefit from the HMCG84MEBRA107N's combination of server-class reliability and moderate power draw. The 1.1V operating voltage and on-module PMIC reduce per-module power versus DDR4 registered memory, important for passively cooled or constrained edge enclosures. The 32GB capacity supports container runtimes and local inference caches at low VM density, while DDR5-4800 bandwidth feeds modern edge SoCs without throttling. Registered ECC protects against bit errors in environments with limited service access, where an uncorrected memory fault could take a remote site offline for days.
Recommended
Virtualization Hosts
For virtualization hosts running moderate VM counts, the HMCG84MEBRA107N provides the per-module capacity and bandwidth that hypervisors need. DDR5's dual 32-bit sub-channels improve concurrency for many small memory transactions typical of VM switching, and the 4800 MT/s rate sustains aggregate bandwidth across populated channels. ECC at the die, link, and registered rank layers reduces soft-error-driven VM crashes. A 12-slot platform populated with this module reaches 384GB, sufficient for most departmental consolidation workloads while keeping cost per GB competitive with higher-speed bins.
Recommended
Workstation Memory Upgrades
RDIMM-capable workstation platforms can use the HMCG84MEBRA107N for CAD, simulation, and content-creation workloads. The 32GB single-rank module gives 4800 MT/s bandwidth for large model assembly and rendering scene data, while ECC catches memory errors during multi-hour render or solver jobs that would otherwise corrupt output silently. Single-rank organization keeps command-bus loading low, preserving stability at two DIMMs per channel. Verify the workstation vendor supports RDIMMs, since most desktop boards require UDIMMs and cannot accept this registered module electrically.
Recommended
Storage Controllers and Appliances
Storage appliances and RAID controllers use registered DDR5 memory as write-cache and metadata buffers, where the HMCG84MEBRA107N's ECC layers matter most. A lost write-cache transaction corrupts the volume, so registered ECC plus on-die ECC materially reduces uncorrectable-error probability versus consumer memory. The 32GB capacity fits modern deduplication and metadata caches, and DDR5-4800 bandwidth keeps parity calculations and log writes from bottlenecking NVMe backend arrays. Platforms should populate channels per the controller vendor's validated population rules for the 1Rx4 organization.
Recommended
Test and Measurement Servers
Instrumentation back-ends and data-acquisition servers handling high-rate streaming rely on the HMCG84MEBRA107N for jitter-tolerant buffering. DDR5-4800 provides 38.4 GB/s nominal bandwidth per module, enough to absorb multi-gigasample digitizer streams before disk offload, and registered signaling preserves signal integrity in electrically noisy rack environments. The CL40 latency at 1.1V trades a slightly higher access latency for lower power, which is acceptable in streaming workloads dominated by sequential bandwidth. ECC prevents silent corruption in long-duration logging campaigns common in test labs.
Recommended
Recommended Products Summary
Engineering reference data for HMCG84MEBRA107N — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | HMCG88MEBRA107N | HMCG84MEBRA174N | HMCG78MEBRA113N | HMCG78AEBRA107N |
|---|---|---|---|---|---|
| Package | 288-pin RDIMM (SDP-RDIMM) | 288-pin RDIMM (SDP-RDIMM) - same | 288-pin RDIMM - same | 288-pin RDIMM - same | 288-pin RDIMM - same |
| Brand | SK Hynix | SK Hynix | SK Hynix | SK Hynix | SK Hynix |
| Capacity | 32 GB | 32 GB | 32 GB | 16 GB | 16 GB |
| Transfer Rate | 4800 Mbps (PC5-38400) | 4800 Mbps | [DATA_NEEDED] | 4800 Mbps | 4800 Mbps |
| Rank / Organization | 1Rx4 | 2Rx4 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| ECC / Registration | ECC, Registered | ECC, Registered | ECC, Registered | ECC, Registered | ECC, Registered |
| Operating Voltage | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V |
| Packaging | Bulk | Bulk | Bulk | Bulk | Bulk |
Key Differentiators
- Single-rank 1Rx4 organization reduces bus load (vs HMCG88MEBRA107N)
- Double capacity of 16GB family parts (vs HMCG78AEBRA107N)
- Cost-optimized 4800 speed bin (vs HMCG84AGBRA191N)
Design Notes
Always validate the HMCG84MEBRA107N against the server vendor's Qualified Vendor List (QVL) before deployment. Server BIOS memory-training tables only support specific register IC and DRAM combinations; an unlisted module may fall back to a lower JEDEC speed (e.g., 4400 MT/s) or fail POST. Do not mix 1Rx4 and 2Rx4 modules on the same channel without checking the platform's population rules, as mixed-rank topologies commonly derate the trained speed below DDR5-4800.
Estimated: each DDR5-4800 RDIMM draws roughly 4-6 W at 1.1V under typical server workloads (estimate based on DDR5 JEDEC-class module power envelopes, not a datasheet figure). A 24-module 2-socket server therefore budgets about 100-150 W for memory alone. Confirm the platform's per-channel power budget and airflow, since modules at the channel end see the highest inlet temperature from upstream DIMM waste heat.
DDR5 modules integrate an on-module PMIC that becomes the hottest component on the assembly. Maintain at least the server vendor's specified DIMM inlet airflow; in dense 1U chassis, use heat-spreader-equipped modules and verify intake temperature stays within the JEDEC module operating envelope. Thermal throttling of the PMIC can force the memory controller to downclock below the 4800 MT/s rating even when the DRAM itself is cool.
Compliance Information
Compliance data not stated in the provided distributor listings; request RoHS/REACH declarations from SK Hynix or the distributor before procurement.
