Product Description
Hynix (SK Hynix) 4GB DDR4 ECC Registered RDIMM
This Hynix HMT351U6CFR8C-PB is a 4GB DDR4 server memory module with ECC. As a 1Rx8 (Single Rank, x8) Registered RDIMM operating at the base DDR4 speed of 2133MHz, it is a foundational, low-density component designed for the initial generation of DDR4 servers. It is best suited for system repair, compatibility maintenance, or cost-effective lab builds.
Key Specifications:
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Capacity: 4GB
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Type: DDR4 SDRAM with ECC
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Speed: 2133 MHz (PC4-17000R)
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Voltage: 1.2V
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Module Type: 288-pin ECC Registered DIMM (RDIMM)
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Organization: 1Rx8 (Single Rank, x8)
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Part Number: HMT351U6CFR8C-PB (NO/AA indicates specific lot/timing)
Compatibility & Applications:
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Target Systems: Early-adopter DDR4 platforms such as Intel Xeon E5 v3/v4-based systems, including Dell PowerEdge 13G (R630), HPE ProLiant Gen9, and Supermicro X10 motherboards.
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Primary Use:
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Direct Replacement: Swapping out a failed module in an older production or lab server.
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Bulk Lab Builds: Economical option for constructing multiple test or light-duty servers where high per-DIMM capacity is not required.
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Note: This module represents the lowest common denominator for DDR4 RDIMMs in terms of capacity and speed. Its value is in bulk pricing for specific compatibility scenarios.



