OWC 128GB (4x32GB) DDR4 2933MHz PC4-23400 CL21 2Rx4 ECC Registered RDIMM 1.2V 288-pin Server RAM
- 128GB (4 x 32GB)
- 288-Pin DDR4 ECC RD…
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OWC
ECC Registered DDR4 2933 kit adds 128 GB across eight 16 GB modules for PowerEdge C4140 servers
Capacity 128GB (8 x 16GB)
This 128GB kit supplies eight 16GB DDR4 2933 ECC registered RDIMMs built for the PowerEdge C4140 with SkyLake CPUs. It targets administrators who need to maximise capacity in that specific platform without mixing registered and unbuffered modules.
Registered buffering and ECC correction keep data integrity intact during continuous multi-threaded workloads typical of virtualisation or database tasks. The modules run at 1.2V and fall back to 2133MHz, 2400MHz or 2666MHz when the system demands lower speeds.
Each 288-pin module slots into the C4140 memory channels without tools or heat spreaders to remove. The kit will not work in standard desktops and cannot be combined with unbuffered or load-reduced ECC memory, so verify the platform before ordering.
| Brand | OWC |
|---|---|
| Part Number | 2R9D42R4128K |
| Capacity | 128GB (8 x 16GB) |
| Type | 288-Pin DDR4 ECC RDIMM |
| Speed | DDR4 2933 (PC4 23400) |
| CAS Latency | CL21 |
| Voltage | 1.2V |
| ECC | Yes |
| Buffered/Registered | Registered |
| Rank | 2Rx4 |
| Heat Spreader | No |
| Compatible System | PowerEdge C4140 (SkyLake CPU) |
Other versions of this model
Same family, different memory, cooler or clock — compare before you commit.
Each module operates at 1.2V, the standard DDR4 voltage, so the eight 16 GB sticks together run at the same low voltage as any JEDEC DDR4 2933 kit.
The PowerEdge C4140 must support DDR4 registered ECC RDIMMs with 2Rx4 organisation and 288-pin slots; it cannot accept unbuffered or load-reduced DIMMs.
Yes, the kit is backward compatible with 2133, 2400 and 2666 MHz speeds, so it will down-clock to match any slower DDR4 registered ECC memory already installed.
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