SK Hynix 16GB 5600MHz DDR5 PC5-44800 ECC Unbuffered CL46 288-Pin DIMM 1.1V Single Rank x8 Memory Module - HMCG78AGBEA084N

The SK Hynix HMCG78AGBEA084N is a 16GB DDR5-5600MHz ECC Unbuffered DIMM (UDIMM) memory module operating at 1.1V with CL46 latency. Featuring a 288-pin DDR5 interface and Single Rank x8 (1Rx8) configuration, it delivers ECC error correction in an unbuffered DDR5 form factor for workstation and server platforms supporting DDR5 ECC UDIMM memory. The 084N suffix denotes a specific production revision of the HMCG78AGBEA SK Hynix 16GB DDR5-5600 ECC UDIMM family.

Key Features

• 16GB DDR5-5600MHz ECC Unbuffered DIMM for workstation and server platforms
• DDR5-5600MHz (PC5-44800) for maximum DDR5 memory bandwidth
• ECC Unbuffered DIMM (UDIMM) — DDR5 ECC without register buffer
• Single Rank x8 (1Rx8) configuration
• 1.1V operation — lower voltage than DDR4 for improved energy efficiency
• 288-pin DDR5 interface — next-generation memory form factor

Product Specifications

• Part Number: HMCG78AGBEA084N
• Manufacturer: SK Hynix
• OEM Status: Genuine SK Hynix OEM
• Capacity: 16GB
• Type: DDR5 ECC Unbuffered DIMM (UDIMM)
• Speed: 5600MHz (PC5-44800)
• CAS Latency: CL46
• Voltage: 1.1V
• Rank / Organization: Single Rank x8 (1Rx8)
• Pins: 288-Pin
• ECC: Yes
• Production Revision: 084N

Memory Specifications

• Capacity: 16GB
• DIMM Type: ECC Unbuffered (UDIMM)
• DDR Generation: DDR5
• Pin Count: 288-Pin
• Rank: Single Rank (1Rx8)
• Voltage: 1.1V
• ECC: Yes (Error-Correcting Code)
• On-Die ECC: Yes (DDR5 native)

Performance Specifications

• Speed: DDR5-5600MHz
• Bandwidth: PC5-44800
• CAS Latency: CL46
• XMP / JEDEC: JEDEC standard

Use Cases

• ECC workstation memory for AMD Ryzen Pro and Intel Xeon W platforms supporting DDR5 ECC UDIMM
• Entry-level server platforms supporting DDR5 ECC Unbuffered DIMM
• Professional workstation applications requiring DDR5 ECC at 5600MHz
• AMD EPYC platforms supporting DDR5 ECC UDIMM configurations

Compatibility

• Compatible with platforms supporting DDR5-5600 ECC Unbuffered (UDIMM) memory
• Compatible with AMD Ryzen Pro, Intel Xeon W, and AMD EPYC platforms supporting DDR5 ECC UDIMM
• Functionally equivalent to HMCG78AGBEA081N variant
• Not compatible with DDR4 systems or RDIMM-only platforms
• Verify platform QVL (Qualified Vendor List) before ordering

Frequently Asked Questions

What is the difference between HMCG78AGBEA084N and HMCG78AGBEA081N?

Both are SK Hynix 16GB DDR5-5600 ECC UDIMM 1Rx8 modules with identical specifications. 084N and 081N are specific production revision suffixes — they are functionally equivalent.

Does DDR5 ECC UDIMM require special platform support?

Yes, DDR5 ECC UDIMM requires a DDR5-capable platform with explicit ECC UDIMM support. Verify your platform's DDR5 ECC UDIMM compatibility before ordering.

Is this module compatible with AMD Ryzen Pro platforms?

Yes, AMD Ryzen Pro platforms with DDR5 ECC UDIMM support are compatible. Verify your specific motherboard's DDR5 ECC UDIMM support before ordering.

The SK Hynix HMCG78AGBEA084N 16GB DDR5-5600 ECC Unbuffered DIMM delivers next-generation ECC memory for workstation and server platforms. Order today for genuine SK Hynix DDR5 ECC UDIMM quality.