SK Hynix 128GB DDR5-5600MHz PC5-44800 ECC Registered CL46 288-Pin DIMM 1.1V Quad Rank x4 Memory Module — HMCT04AGERA195N

The SK Hynix HMCT04AGERA195N is a 128GB DDR5-5600MHz ECC Registered (RDIMM) server memory module operating at 1.1V with CL46 latency. Featuring a 288-pin DDR5 interface and Quad Rank x4 (4Rx4) configuration, it delivers maximum-capacity, high-bandwidth enterprise-grade ECC error correction for Intel Xeon Scalable (Sapphire Rapids) and AMD EPYC (Genoa) server platforms requiring DDR5-5600 registered memory at 128GB per slot density.

Key Features

• 128GB maximum-capacity DDR5-5600MHz ECC Registered DIMM for enterprise servers
• DDR5-5600MHz (PC5-44800) for maximum DDR5 server memory bandwidth
• Registered DIMM (RDIMM) for stability in multi-DIMM DDR5 server configurations
• Quad Rank x4 (4Rx4) for maximum per-slot DDR5 capacity
• 1.1V operation — lower voltage than DDR4 for improved energy efficiency
• 288-pin DDR5 interface — next-generation server memory form factor

Product Specifications

• Part Number: HMCT04AGERA195N
• Manufacturer: SK Hynix
• OEM Status: Genuine SK Hynix OEM
• Capacity: 128GB
• Type: DDR5 ECC Registered DIMM (RDIMM)
• Speed: 5600MHz (PC5-44800)
• CAS Latency: CL46
• Voltage: 1.1V
• Rank / Organization: Quad Rank x4 (4Rx4)
• Pins: 288-Pin
• ECC: Yes

Memory Specifications

• Capacity: 128GB
• DIMM Type: Registered ECC (RDIMM)
• DDR Generation: DDR5
• Pin Count: 288-Pin
• Rank: Quad Rank (4Rx4)
• 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

• Maximum-capacity DDR5-5600 enterprise server memory for Intel Xeon Scalable (Sapphire Rapids) platforms
• AMD EPYC (Genoa) server memory requiring 128GB DDR5-5600 RDIMM per slot
• Virtualization hosts requiring maximum DDR5-5600 memory capacity
• AI inference and HPC workloads requiring maximum DDR5 bandwidth and density

Compatibility

• Compatible with servers supporting DDR5-5600 ECC Registered (RDIMM) 4Rx4 memory
• Compatible with Intel Xeon Scalable (Sapphire Rapids) and AMD EPYC (Genoa) platforms supporting 128GB DDR5-5600 RDIMM
• Functionally equivalent to HMCT04AEERA131N and HMCT04MEERA131N at DDR5-5600 speed grade
• Not compatible with DDR4 systems — DDR5 requires DDR5-capable platforms
• Verify server QVL (Qualified Vendor List) before ordering — 4Rx4 128GB DDR5-5600 support varies by platform

Frequently Asked Questions

What is the difference between HMCT04AGERA195N (DDR5-5600) and HMCT04AEERA131N (DDR5-4800)?

Both are SK Hynix 128GB DDR5 ECC RDIMM 4Rx4 modules. HMCT04AGERA195N runs at DDR5-5600MHz (PC5-44800) while HMCT04AEERA131N runs at DDR5-4800MHz (PC5-38400) — different speed grades.

Is HMCT04AGERA195N compatible with Intel Xeon Sapphire Rapids?

Yes, it is compatible with Intel Xeon Scalable Sapphire Rapids server platforms supporting DDR5-5600 ECC RDIMM 4Rx4. Verify your specific server's QVL for 128GB DDR5-5600 RDIMM support before ordering.

What is Quad Rank x4 (4Rx4) DDR5 memory?

Quad Rank x4 (4Rx4) means the module has four ranks of memory chips using x4-wide chips, enabling maximum per-slot capacity (128GB). Server platform support for 4-rank DDR5 RDIMMs must be verified before ordering.

The SK Hynix HMCT04AGERA195N 128GB DDR5-5600 ECC Registered DIMM delivers maximum-capacity, next-generation server memory performance for Sapphire Rapids and EPYC Genoa platforms. Order today for genuine SK Hynix DDR5 RDIMM quality.