OWC 128GB DDR4 2933MHz CL21 1.2V 288pin ECC Registered RDIMM 4Rx4 memory upgrade
- 128GB
- 288-Pin DDR4 ECC RD…
OWC
128GB DDR4 2933MHz ECC registered DIMM for Supermicro X11 server motherboards
This 128GB DDR4 2933MHz CL21 ECC Registered 288-pin DIMM is built for Supermicro X11 server and workstation boards including X11DSN-TS, X11OPi-CPU, X11QPH+, X11QPL and X11SPA-T. It operates at 1.2V with a 4Rx4 organisation and replaces Supermicro part numbers MEMDR412LSL01ER29 and MEM-DR412MH-ER29. Buyers upgrading standard desktop systems or needing unbuffered memory cannot use this module.
The module runs at the standard DDR4 1.2V without a heat spreader, relying on chassis airflow for cooling in 1U or 2U server enclosures. Registered buffering and ECC logic add minimal overhead, keeping power draw predictable for dense multi-DIMM configurations. No active cooling or additional voltage headroom is required for rated 2933MHz operation.
Backward compatibility with 2133MHz, 2400MHz and 2666MHz buses lets the DIMM slot into existing Supermicro platforms without BIOS updates. ECC registered operation enables error correction and signal integrity for mission-critical workloads, while the 4Rx4 density maximises capacity per slot. The module is JEDEC and RoHS compliant and cannot be mixed with unbuffered memory in the same system.
| Brand | OWC |
|---|---|
| Part Number | 2R9D44R4128G |
| Capacity | 128GB |
| Type | 288-Pin DDR4 ECC RDIMM |
| Speed | DDR4 2933 (PC4 23400) |
| CAS Latency | CL21 |
| Voltage | 1.2V |
| ECC | Yes |
| Buffered/Registered | Registered |
| Rank | 4Rx4 |
| Heat Spreader | No |
| Compatible System | Supermicro Motherboard X11DSN-TS Supermicro Motherboard X11OPi-CPU Supermicro Motherboard X11QPH+ Supermicro Motherboard X11QPL Supermicro Motherboard X11SPA-T |
其他版本
同系列產品,記憶體、散熱器或時脈不同 — 下單前請先比較。
Align the notch on the 288pin module with the slot key, press firmly until both clips snap shut, and verify the BIOS detects 2933MHz CL21 operation; the step often missed is confirming the memory mode is set to registered ECC in the firmware.
No periodic maintenance is required; replacement is only needed if a module fails, at which point the limited lifetime warranty covers an advanced replacement of the same 128GB DDR4 2933MHz CL21 part.
The CL21 latency at 2933MHz is the primary timing constraint under sustained load; the registered buffer adds one cycle, so throughput caps at the JEDEC PC4-23400 rate before thermal or voltage limits are reached.
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