OWC 512GB (4x128GB) DDR4 2933MHz CL21 4Rx4 ECC Load Reduced LRDIMM 1.2V 288-pin Server RAM
- 512GB (4 x 128GB)
- 288-Pin DDR4 ECC LR…
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OWC
Eight 128 GB DDR4 2933 MHz ECC load-reduced LRDIMMs totalling 1 TB for server and workstation upgrades
Capacity 1TB (8 x 128GB)
This 1TB kit contains eight 128GB DDR4-2933 ECC load-reduced DIMMs built for servers, workstations and compatible NAS systems. It runs at PC4-23400 with CL21 latency and 1.2V operation. The modules use 288-pin 4Rx4 organisation and are JEDEC and RoHS compliant.
The kit replaces smaller LRDIMM sets or slower DDR4-2133, DDR4-2400 and DDR4-2666 modules in supported platforms. The jump is worth it when your workload needs maximum registered ECC capacity per slot and the platform accepts 4Rx4 load-reduced modules at 2933MHz.
Modules install like standard 288-pin DIMMs but must go into slots that support ECC load-reduced memory. They will not work in standard desktop computers and cannot be mixed with unbuffered DIMMs. Verify platform qualification before fitting.
| Brand | OWC |
|---|---|
| Part Number | 2L9D44R41TBK |
| Capacity | 1TB (8 x 128GB) |
| Type | 288-Pin DDR4 ECC LRDIMM |
| Speed | DDR4 2933 (PC4 23400) |
| CAS Latency | CL21 |
| Voltage | 1.2V |
| ECC | Yes |
| Buffered/Registered | Load Reduced |
| Rank | 4Rx4 |
| Multi-channel Kit | Dual Channel Kit |
| Heat Spreader | No |
Other versions of this model
Same family, different memory, cooler or clock — compare before you commit.
The modules use the standard 288-pin DDR4 LRDIMM form factor for server and workstation boards that support load-reduced memory.
Populate all eight slots following the motherboard's channel population guide; the kit is a dual-channel set and must not be mixed with unbuffered DIMMs.
Replace a module when the system logs uncorrectable ECC errors or the memory diagnostic reports a persistent fault on that DIMM.
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