Kingston 64GB DDR5-5600 ECC Registered RDIMM for Enterprise Servers

The Kingston KSM56R46BD4PMI-64HAI is a 64GB DDR5-5600 (PC5-44800) ECC Registered DIMM with CL46 latency, 1.1V operation, and dual rank x4 organization — a Micron-die RDIMM variant providing an alternative binning option to the KSM56R46BD4PMI-64MDI for enterprise DDR5 server platforms supporting Intel Xeon Scalable Gen 4/5 and AMD EPYC DDR5 memory.

Key Features

• 64GB DDR5-5600 ECC RDIMM — Micron-die alternative variant to KSM56R46BD4PMI-64MDI
• Dual rank x4 (2Rx4) for maximum DDR5 bandwidth and capacity per memory channel
• Micron DRAM die (PMI) for verified die-specific server platform QVL compatibility
• Functionally equivalent to KSM56R46BD4PMI-64MDI for supported DDR5 server platforms
• 1.1V DDR5 ECC RDIMM with DDR5 native on-die ECC for multi-layer memory error protection

Product Specifications

• Part Number: KSM56R46BD4PMI-64HAI
• Manufacturer: Kingston
• Capacity: 64GB
• Type: DDR5 ECC RDIMM (Registered)
• Speed: 5600MHz (PC5-44800)
• CAS Latency: CL46
• Voltage: 1.1V
• Pins: 288-pin

Memory Specifications

• Ranks x Width: 2Rx4 (Dual Rank x4)
• DRAM Die: Micron (PMI)
• ECC: Yes (system-level ECC + DDR5 on-die ECC)
• Registered: Yes (RDIMM — buffered register)
• JEDEC Compliant: DDR5-5600 JEDEC standard

Performance Specifications

• Peak Bandwidth: ~89.6 GB/s (dual-channel at 5600MHz)
• 2Rx4 Configuration: Full x72 ECC bus width with dual-rank interleaving
• Timing: 46-45-45
• On-Die ECC: Yes (DDR5 native)

Use Cases

• Alternative procurement for 64GB Micron-die DDR5-5600 RDIMM in enterprise server environments
• Intel Xeon Scalable 4th/5th Gen server memory expansion at 64GB per slot density
• AMD EPYC Genoa/Bergamo platform DDR5 memory builds requiring Micron-die RDIMMs
• Multi-supplier RDIMM stocking for enterprise server fleets requiring 64GB DDR5 modules

Compatibility

• Compatible with Intel Xeon Scalable 4th/5th Gen DDR5-5600 RDIMM server platforms
• Compatible with AMD EPYC Genoa and Bergamo DDR5 RDIMM platforms
• Micron die — verify server QVL for PMI die variant acceptance
• Interchangeable with KSM56R46BD4PMI-64MDI on supported DDR5 server platforms

Frequently Asked Questions

Is the KSM56R46BD4PMI-64HAI interchangeable with KSM56R46BD4PMI-64MDI?

Yes — both are 64GB DDR5-5600 ECC Registered 2Rx4 Micron-die RDIMMs with identical electrical specifications. The HAI and MDI suffixes reflect Kingston's internal production batch or binning designation rather than functional differences for supported server platforms.

Can I mix KSM56R46BD4PMI-64HAI and KSM56R46BD4PMI-64MDI in the same server?

Kingston recommends populating all DIMMs within a channel with identical modules for optimal stability. While both variants share the same specifications, mixing production batches within a channel may reduce operating speed on some platforms — consult your server's memory population guide.

What servers specifically support DDR5-5600 RDIMMs at 64GB density?

Intel Xeon Scalable 4th Gen (Sapphire Rapids) and 5th Gen (Emerald Rapids) servers, as well as AMD EPYC Genoa and Bergamo servers, support DDR5-5600 RDIMMs. Maximum speed and capacity per channel depend on the specific server model, CPU, and DIMM population — always consult the server OEM's memory configuration guide.

The Kingston KSM56R46BD4PMI-64HAI delivers 64GB of Micron-die DDR5-5600 ECC Registered memory as a validated alternative to the MDI variant — giving enterprise server administrators procurement flexibility for maximum-density DDR5 RDIMM configurations in Intel Xeon and AMD EPYC production environments.