Product Description
SK Hynix 16GB DDR4-2666 LRDIMM Server Memory Module (HMA42GR7MFR4N-TFTDAB)
This is a genuine SK Hynix 16GB DDR4 LRDIMM (Load-Reduced DIMM) server memory module, part number HMA42GR7MFR4N-TFTDAB. Engineered for high-density enterprise servers, this module was pulled from a decommissioned system and is ideal for upgrading or repairing compatible Dell, HPE, Cisco, and Lenovo platforms.
Key Specifications:
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Capacity: 16GB
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Type: DDR4 SDRAM
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Speed: PC4-21300 (2666 MHz)
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Format: 288-pin LRDIMM (Load-Reduced with buffer chip)
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Part Number: HMA42GR7MFR4N-TFTDAB
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Rank: 2Rx4 (Dual Rank, x4 organization)
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Voltage: 1.2V
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Manufacturer: SK Hynix
Compatibility:
This LRDIMM is designed for high-density, multi-socket enterprise servers that support Load-Reduced memory. Commonly used in systems like Dell PowerEdge R740/R840, HPE ProLiant DL380 Gen10, Cisco UCS B-Series, and similar platforms. Verify compatibility with your specific server model—LRDIMMs are not interchangeable with RDIMMs or UDIMMs.
Applications:
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High-Density Server Upgrades: Expand memory capacity in virtualization, database, or cloud servers
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Data Center Maintenance: Replacement module for failed LRDIMMs in critical infrastructure
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Homelab Scaling: For enthusiasts building high-capacity server clusters on a budget
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IT Spare Inventory: Reliable tested spare for enterprise environments



