HMCG78AGBUA084N - 16GB DDR5-5600 UDIMM | SK hynix
MPN: HMCG78AGBUA084N ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $45 | $45.00 |
| 10 | $43.2 | $432.00 |
| 100 | $41 | $4,100.00 |
| 500 | $39.5 | $19,750.00 |
| 1,000 | $38 | $38,000.00 |
Drop-in alternatives for HMCG78AGBUA084N — 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:
HMCG78AGBUA081N
✅ Drop-In✓ In Stock
$244.95 / Unit
View Datasheet →HMCG78AEBUA084N
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
HMCGG6MGBUB252N
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CT16G56C46U5
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KVR56U46BS8-16
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M323R2GA3BB0-CWM
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HMCG78AGBUA084N Maximum Ratings & Electrical Characteristics
| Memory Type | DDR5 SDRAM |
| Module Type | UDIMM (unbuffered, non-ECC) |
| Capacity | 16 GB (2Gx64) |
| Data Rate | 5600 MT/s (DDR5-5600B) |
| Configuration | 1Rx8 |
| DRAM Organization | 8 x 2Gx8, 8C |
| Pin Count | 288 |
| Package / Case | SDP-UDIMM |
| ECC | Non-ECC (on-die ECC per DDR5 standard) |
| Ranks | Single rank |
| Peak Bandwidth | Approx. 44.8 GB/s per module (5600 MT/s x 64-bit) |
| Lifecycle Status | Active |
| Packaging | Bulk |
HMCG78AGBUA084N sdp-udimm Pin Configuration Guide
Complete pinout information for HMCG78AGBUA084N (sdp-udimm 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 HMCG78AGBUA084N.
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
HMCG78AGBUA084N is suitable for 6 applications: Desktop PC Memory Upgrade, Small Workstation and Mini-PC Build, Industrial and Embedded x86 Systems, Gaming Performance Systems, Virtualization and Content Creation Desktops, System Integration and OEM Prebuilds.
Desktop PC Memory Upgrade
The HMCG78AGBUA084N fits standard desktop memory upgrades on Intel 600/700-series and AMD AM5 motherboards that support JEDEC DDR5-5600 UDIMMs. Its 5600 MT/s data rate over DDR4-3200 delivers roughly 40% higher peak bandwidth (about 44.8 GB/s per module), directly benefiting CPU-bound gaming and content-creation workloads. The 1Rx8 single-rank design trains quickly and allows pairing with a second identical module for full dual-channel operation. As an unbuffered non-ECC UDIMM, it installs in any consumer DDR5 slot without BIOS-side ECC configuration; users should follow the motherboard manual's recommended slot population order for optimal memory-channel training and stability.
Recommended
Small Workstation and Mini-PC Build
Compact workstations and mini-PCs that accept standard-height UDIMMs benefit from the HMCG78AGBUA084N's 16GB-per-slot density, enabling 32GB (2x16GB) configurations in two-slot chassis. The DDR5-5600 class bandwidth supports photo editing, CAD, and light video workloads where memory bandwidth feeds iGPU and CPU memory subsystems. DDR5's two independent 32-bit sub-channels improve effective concurrency for mixed read/write streams typical of creative applications. Because the module is JEDEC-standard non-ECC, it suits office and prosumer platforms; engineers needing error-correcting memory for certified workstation platforms should select an ECC RDIMM variant such as the HMCG78MEBRA107N family instead.
Recommended
Industrial and Embedded x86 Systems
Industrial PCs, edge servers, and embedded x86 controllers that specify standard UDIMM sockets can deploy the HMCG78AGBUA084N as main memory. Its JEDEC DDR5-5600B profile ensures interoperability across industrial motherboard vendors, and the DDR5 generation's on-die ECC improves data integrity in 24/7 operation compared with DDR4 without module-level ECC. Designers should verify the platform memory controller supports the 5600 MT/s bin (older controllers down-clock the module gracefully to their maximum supported rate). Bulk packaging suits integration houses ordering in production volume; confirm RoHS/reach declarations and the operating temperature envelope with SK hynix before qualifying the module for extended-temperature industrial deployments.
Recommended
Gaming Performance Systems
For gaming builds, the HMCG78AGBUA084N provides the DDR5-5600 JEDEC baseline that current CPU memory controllers are optimized for, reducing first-word latency versus early DDR5-4800 modules thanks to the faster bin. Games sensitive to memory bandwidth (open-world titles, simulation) gain from the 5600 MT/s rate and DDR5's BL16 burst efficiency. Enthusiasts may further tune subtimings manually; community testing of SK hynix DDR5 dies reports overclocking headroom above 7000 MT/s on good bins, though this specific module is not marketed as an XMP/EXPO kit. For guaranteed-pair tuned kits, buy two identical modules together to ensure same-batch DRAM for stable dual-channel operation.
Recommended
Virtualization and Content Creation Desktops
Desktop virtualization hosts and creative workstations running VMs, Adobe suites, or local AI inference are memory-capacity sensitive; the HMCG78AGBUA084N's 16GB density allows 64GB (4x16GB) or 128GB (8x16GB) total configurations on four-slot and four-DIMM-per-channel consumer boards. DDR5-5600 bandwidth supports hypervisor memory operations and large asset streaming, while on-die ECC reduces silent-data-corruption risk during long renders or compilation. Note that populating all slots may force the memory controller to down-clock below 5600 MT/s depending on platform - consult the motherboard QVL for per-slot speed derating. Single-rank modules generally allow higher speeds at full population than dual-rank equivalents.
Recommended
System Integration and OEM Prebuilds
System integrators and OEM builders can standardize on the HMCG78AGBUA084N for DDR5 desktop and entry-server-adjacent product lines. Distributor stock levels (21,000 pcs at icDirectory and 41,830 pcs at Octopart India, August 2026) support volume procurement, and its cross-brand equivalents (Crucial CT16G56C46U5, Kingston KVR56U46BS8-16, Samsung M323R2GA3BB0-CWM) provide supply-chain redundancy without redesign. Because the module follows the JEDEC DDR5 UDIMM standard, qualification testing performed on this MPN largely transfers to pin-compatible equivalents, shortening second-source approval cycles. Request date-code consistency and bulk-pack confirmation from the distributor when mixing sources within one production batch.
Recommended
Recommended Products Summary
Engineering reference data for HMCG78AGBUA084N — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | HMCG78AGBUA081N | HMCG78AEBUA084N | HMCGG6MGBUB252N | CT16G56C46U5 | KVR56U46BS8-16 | M323R2GA3BB0-CWM |
|---|---|---|---|---|---|---|---|
| Package | SDP-UDIMM 288-pin | SDP-UDIMM 288-pin - same | SDP-UDIMM 288-pin - same | SDP-UDIMM 288-pin - same | UDIMM 288-pin - same | UDIMM 288-pin - same | UDIMM 288-pin - same |
| Brand | SK hynix | SK hynix | SK hynix | SK hynix | Crucial (Micron) | Kingston | Samsung |
| Memory Size | 16 GB | 16 GB | 16 GB | 12 GB | 16 GB | 16 GB | 16 GB |
| Transfer Rate | 5600 MT/s | 5600 MT/s | 5600 MT/s | 5600 MT/s | 5600 MT/s | 5600 MT/s | 5600 MT/s |
| Memory Type | DDR5 UDIMM non-ECC | DDR5 UDIMM non-ECC | DDR5 UDIMM non-ECC | DDR5 UDIMM non-ECC | DDR5 UDIMM non-ECC | DDR5 UDIMM non-ECC | DDR5 UDIMM non-ECC |
| Configuration | 1Rx8 | 1Rx8 | 1Rx8 | [DATA_NEEDED] | 1Rx8 | 1Rx8 | [DATA_NEEDED] |
| Lifecycle Status | Active | Active | Active | Active | Active | Active | Active |
| Packaging | Bulk | Bulk | [DATA_NEEDED] | Bulk | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Highest per-slot density in the comparison set at JEDEC spec (vs HMCGG6MGBUB252N)
- Faster bin than registered server alternative (vs HMCG78MEBRA107N)
- Same-brand family drop-in availability (vs HMCG78AGBUA081N)
Design Notes
DDR5 and DDR4 UDIMMs are not interchangeable: the notch position differs and DDR5 runs at 1.1V-class signaling versus DDR4's 1.2V. Never force a DDR5 module into a DDR4 slot. Also verify the platform memory controller supports DDR5-5600; on controllers rated for 4800 or 5200 MT/s, this module will down-clock automatically. When populating multiple slots, consult the motherboard manual slot order - incorrect population order is the most common cause of failed memory training on first boot.
DDR5 UDIMMs integrate an on-module PMIC (5V auxiliary rail from the 288-pin connector) that regulates DRAM core power locally, offloading the motherboard VRM. Motherboard designers must route the PMIC control bus (I2C/PMBus to SPD hub) and ensure the DIMM slot power plane follows the JEDEC DDR5 UDIMM layout reference. System builders need no action, but board-level designers should confirm their memory-completeness design supports the DDR5 SPD hub for module detection.
Estimated: a single-rank DDR5-5600 16GB module typically draws in the range of 3-6 W under load (own estimate based on DDR5 class power levels, not a datasheet figure). For 8-module high-density desktop configurations, budget roughly 30-50 W for the memory subsystem and verify chassis airflow across DIMM slots. The module requires no heatsink for JEDEC operation; passive heatspreaders are cosmetic for standard-profile builds. Thermal sensors accessible via the SPD hub allow platform-level monitoring.
Compliance Information
Distributor listings confirm active status and bulk packaging but did not include explicit RoHS/REACH declarations. Request the manufacturer declaration of conformity from SK hynix or the distributor.
