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Green rectangular circuit board with gold edge connectors and black memory chips, no heat spreader

OWC

OWC 128GB DDR4 3200 CL22 8Rx4 288-pin 1.2V ECC RDIMM memory upgrade

SKU CH-848Q-JNPF0

A single 128GB DDR4 3200 ECC registered DIMM with CL22 latency and 1.2V operation for compatible ASRock server motherboards

  • Capacity128GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS Latency22
  • Voltage1.2V
  • ECCYes
  • 128GB single module expands server capacity
  • ECC registered design protects data integrity
  • DDR4 3200 CL22 delivers responsive performance
  • 2V operation reduces power consumption
  • Compatible with ASRock SP2C621D16 server boards

Server-grade 128GB ECC RDIMM

This single 128GB DDR4 3200 module delivers registered ECC memory for ASRock server motherboards including the SP2C621D16-2L+, SP2C621D16-2T, SP2C621D16-2T/X550, SP2C621D16HM3 and SP2C621D16N-2L2T. It targets administrators who need maximum capacity per slot in workstation or NAS environments. Builders using standard desktop platforms cannot use this memory.

JEDEC-standard registered design

The module follows JEDEC and RoHS specifications at 1.2V with CL22 latency and 8Rx4 organisation. Backward compatibility lets it run at 2133, 2400, 2666 or 2933 MHz when the platform requires lower speeds. It must not be mixed with unbuffered or load-reduced DIMMs.

288-pin form factor without heat spreader

The bare 288-pin RDIMM fits dense server chassis where tall spreaders would block airflow or adjacent slots. Registered signalling reduces electrical load on the memory controller, supporting stable operation in multi-DIMM configurations. Buyers needing unbuffered ECC or consumer DDR4 should look elsewhere.

Najważniejsze cechy

  • 128GB single module expands server capacity
  • ECC registered design protects data integrity
  • DDR4 3200 CL22 delivers responsive performance
  • 2V operation reduces power consumption
  • Compatible with ASRock SP2C621D16 server boards

Specyfikacja

BrandOWC
Part Number3R2D48R4128G
Capacity128GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 3200 (PC4 25600)
CAS Latency22
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank8Rx4
Heat SpreaderNo
Compatible SystemASRock Server Motherboard SP2C621D16-2L+
ASRock Server Motherboard SP2C621D16-2T
ASRock Server Motherboard SP2C621D16-2T/X550
ASRock Server Motherboard SP2C621D16HM3
ASRock Server Motherboard SP2C621D16N-2L2T

Pytania dotyczące tego produktu

Will the 8Rx4 rank configuration require replacement if I expand beyond this single 128GB module?

The 8Rx4 organisation uses all ranks on one 288-pin DIMM; adding further modules depends on the motherboard's maximum rank-per-channel limit, not on this stick itself.

What thermal limit appears first when the registered ECC DIMM runs at 3200 MT/s continuously?

Without a heat spreader the DRAM junction temperature will reach its JEDEC maximum before the 1.2 V supply or the register becomes the bottleneck.

How much extra power and noise does the registered buffer add during 24/7 server operation?

The on-DIMM register draws only milliwatts more than an unbuffered module and produces no audible noise; total power stays at the standard 1.2 V DDR4 level.

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