HMCG78MEBRA113N - 16GB DDR5-4800 ECC RDIMM | SK hynix
MPN: HMCG78MEBRA113N β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $118 | $118.00 |
| 10 | $112.5 | $1,125.00 |
| 100 | $106 | $10,600.00 |
| 500 | $99.5 | $49,750.00 |
| 1,000 | $94 | $94,000.00 |
Drop-in alternatives for HMCG78MEBRA113N β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
HMCG78MEBRA107N
β Drop-Inπ Reference alternative (not in catalog)
HMCG78MEBRA115N
β Drop-Inπ Reference alternative (not in catalog)
HMCG78MEBRA174N
β Drop-Inπ Reference alternative (not in catalog)
HMCG88MEBRA113N
β Drop-Inπ Reference alternative (not in catalog)
HMCG88MEBRA115N
β Drop-Inπ Reference alternative (not in catalog)
HMCG78MEBRA113N Maximum Ratings & Electrical Characteristics
| Memory Type | DDR5 SDRAM |
| Module Type | 288-Pin ECC Registered DIMM (RDIMM) |
| Capacity | 16 GB |
| Data Rate | 4800 MT/s (PC5-38400) |
| CAS Latency | CL40 |
| Rank x Organization | 1Rx8 (Single Rank, x8) |
| Operating Voltage | 1.1 V |
| ECC | Yes (Registered, ECC) |
| Pin Count | 288 |
| Form Factor | RDIMM (288-pin) |
| Compatible Platforms | HPE ProLiant Gen10+/Gen11, Dell PowerEdge 16G, Lenovo ThinkSystem (Intel Xeon Scalable 4th/5th Gen, AMD EPYC) |
| Backward Speed Compatibility | 4400 MT/s |
| Packaging | Bulk |
HMCG78MEBRA113N standard Pin Configuration Guide
Complete pinout information for HMCG78MEBRA113N (standard package) with 288 pins. 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 HMCG78MEBRA113N.
Refer to the datasheet for full pin configuration.
Estimated pin count: 288 pins (digital package)
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
HMCG78MEBRA113N is suitable for 6 applications: Enterprise Server Memory, Virtualization Hosts, Data Center Memory Upgrades, Workstations, In-Memory Databases, Network Appliance and Storage Controllers.
Enterprise Server Memory
The HMCG78MEBRA113N is purpose-built for enterprise server memory channels on Intel Xeon Scalable 4th/5th Gen and AMD EPYC platforms. Its 4800 MT/s data rate delivers 38.4 GB/s per module (PC5-38400), while the ECC Registered architecture keeps command/address loading low enough for 8 DIMMs per channel - a requirement unbuffered modules cannot meet. The 1Rx8 single-rank design simplifies memory-controller training and supports homogeneous populations per vendor guidelines. Deployed in HPE ProLiant Gen10+/Gen11 and Dell PowerEdge 16G chassis, the 1.1V rail keeps per-module power low so dense 2U systems stay within thermal budgets while providing full DDR5 bandwidth for virtualization and database workloads.
Recommended
Virtualization Hosts
Virtualization platforms such as VMware ESXi and KVM hosts benefit directly from the HMCG78MEBRA113N's combination of ECC protection and 4800 MT/s bandwidth. Hypervisors randomize memory access across many VMs, increasing the exposure window for soft errors; the module's registered ECC corrects single-bit faults before they corrupt guest state, sustaining months of uptime. Its 16GB granularity matches typical per-VM allocations (4-16GB), letting administrators populate 256GB-class hosts with predictable rank interleaving. Because RDIMMs are mandatory on Xeon Scalable and EPYC server boards, this module slots directly into standard virtualization reference configurations from HPE, Dell, and Lenovo without firmware customization.
Recommended
Data Center Memory Upgrades
For data center fleet-wide refresh programs, the HMCG78MEBRA113N offers a proven, JEDEC-standard 16GB DDR5-4800 RDIMM with over 36,000 pieces of distributor stock reported as of mid-2026, minimizing deployment risk across hundreds of servers. Modules sourced in bulk (288-pin, 1.1V, PC5-38400) keep spare-part inventories homogeneous, simplifying RMA handling. Third-party compatibility lists (NEMIX, A-Tech) document drop-in interchange with sibling Hynix suffixes (107N/115N/174N), giving procurement teams multiple sourcing lines for the same BOM position. The module's automatic downclock to 4400 MT/s protects mixed-generation fleets where older BIOS builds have not yet enabled the 4800 speed bin.
Recommended
Workstations
High-end workstations built on Xeon W and Threadripper PRO platforms that accept registered DDR5 DIMMs can use the HMCG78MEBRA113N for ECC-protected content creation, CAD, and simulation workloads. Its 4800 MT/s transfer rate feeds memory-bandwidth-hungry rendering and finite-element solvers, while ECC prevents silent bit flips that would otherwise invalidate multi-hour compute jobs. The 16GB 1Rx8 configuration allows incremental capacity builds (16/32/64GB stations) with predictable thermal behavior at 1.1V in compact chassis with limited airflow. Buyers should confirm the workstation QVL lists 4800-capable RDIMM bins; otherwise the module downclocks to the platform's supported speed, retaining full ECC functionality.
Recommended
In-Memory Databases
In-memory database engines (SAP HANA-class, Redis Enterprise, AnalyticDB workloads) are sensitive to both capacity density and data integrity, making the HMCG78MEBRA113N a fit for mid-tier nodes. The module's 38.4 GB/s per-DIMM bandwidth at 4800 MT/s supports column-scan acceleration, while RDIMM ECC plus DDR5 on-die ECC protects the working set from the soft-error rates that scale with DRAM density and uptime. Its single-rank 1Rx8 organization lets database servers populate high DIMM counts per channel with stable signal timing at 1.1V. For HANA-certified servers from HPE and Lenovo, this module family commonly appears on the vendor memory QVLs for 16GB expansion positions.
Recommended
Network Appliance and Storage Controllers
Storage controllers and network appliances (SAN heads, NVMe-oF gateways, firewall appliances) built on server-class Xeon or EPYC SoCs require RDIMMs, and the HMCG78MEBRA113N's 16GB 1Rx8 configuration suits the moderate-capacity, high-reliability profile of these embedded server designs. ECC Registered operation protects packet buffers and metadata caches against bit errors during 24/7 operation, and the 4800 MT/s rate keeps line-rate packet processing supplied with descriptor rings and flow tables. Appliance OEMs also value the module's documented interchange with sibling Hynix suffixes (107N/115N/174N) for multi-year supply continuity, and its 1.1V operation relaxes the power budget of passively cooled 1U enclosures.
Recommended
Recommended Products Summary
Engineering reference data for HMCG78MEBRA113N β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | HMCG78MEBRA107N | HMCG78MEBRA115N | HMCG78MEBRA174N | HMCG88MEBRA113N | HMCG88MEBRA115N |
|---|---|---|---|---|---|---|
| Package | 288-pin DDR5 RDIMM | 288-pin DDR5 RDIMM - same | 288-pin DDR5 RDIMM - same | 288-pin DDR5 RDIMM - same | 288-pin DDR5 RDIMM - same | 288-pin DDR5 RDIMM - same |
| Brand | SK hynix | SK hynix | SK hynix | SK hynix | SK hynix | SK hynix |
| Capacity | 16 GB | 16 GB | 16 GB | 16 GB | 32 GB | 32 GB |
| Data Rate | 4800 MT/s (PC5-38400) | 4800 MT/s | 4800 MT/s | 4800 MT/s | 4800 MT/s | 4800 MT/s |
| Memory Type / ECC | DDR5 ECC Registered | DDR5 ECC Registered | DDR5 ECC Registered | DDR5 ECC Registered | DDR5 ECC Registered | DDR5 ECC Registered |
| Rank x Organization | 1Rx8 | 1Rx8 | 1Rx8 | 1Rx8 | [DATA_NEEDED] | [DATA_NEEDED] |
| Operating Voltage | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V |
| Packaging | Bulk | Bulk | Bulk | Bulk | Bulk | Bulk |
Key Differentiators
- Highest per-slot value in verified family (vs HMCG88MEBRA113N)
- Broad interchange within Hynix suffix family (vs HMCG78MEBRA107N)
- Graceful speed fallback (vs HMCG88MEBRA115N)
Design Notes
Never mix RDIMMs with UDIMMs or SODIMMs, and do not install this 288-pin RDIMM in consumer desktop boards - the registered protocol will prevent POST entirely. When populating mixed capacities (16GB HMCG78MEBRA113N alongside 32GB HMCG88MEBRA113N), follow the server vendor population order (typically fill white/primary slots first per channel) and expect the channel to train at the lowest common speed. Verify BIOS is at the vendor's latest DDR5 training release to avoid early Gen11/16G memory-training bugs.
Each HMCG78MEBRA113N draws its 1.1V rail from the server's DDR VDD plane. Estimated: a fully populated 8-DIMM channel with 16GB modules at 4800 MT/s can draw roughly 5-8W per module under load, so budget approximately 40-64W per channel when sizing PSU headroom and cooling - this is an estimate, not a datasheet figure. The 1.1V JEDEC voltage (vs 1.2V for DDR4) reduces per-module power but increases current density; ensure VRM and board copper are rated for DDR5 server-class currents.
Registered DIMMs shift signal-integrity burden to the module's register, but channel training quality still depends on seating and slot hygiene. Clean DIMM slot contacts with approved electronics-grade contact cleaner if systems exhibit training failures after years in dusty data centers, and always seat by pressing both ends until the latches close fully - partial seating is the leading cause of DDR5 training errors. Confirm chassis airflow covers DIMM slots; server DIMMs at 4800 MT/s rely on forced air rather than heatsinks on this module class.
Compliance Information
Compliance details not stated in the provided verified web data; JEDEC-standard server DRAM modules are typically RoHS-compliant but this must be confirmed with SK hynix documentation.
