We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two green 288-pin DDR4 LRDIMM modules with gold contacts and black chips

OWC

OWC 256GB (2x128GB) DDR4 2933 PC4-23400 CL21 4Rx4 288-pin 1.2V ECC Load Reduced LRDIMM memory upgrade

SKU CH-RVSN-AGNHA

256 GB kit of two 128 GB DDR4-2933 ECC LRDIMMs for HP ProLiant Gen10 servers

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Memory rank4Rx4

Capacity 256GB (2 x 128GB)

  • 256 GB capacity with two 128 GB modules
  • DDR4 2933 MHz speed rated at PC4-23400 CL21
  • ECC load-reduced design for server reliability
  • 2 V operation lowers power draw
  • Compatible with HP ProLiant Gen10 servers

Server memory upgrade

This OWC kit provides 256GB of DDR4 2933 memory in two 128GB modules built for HP ProLiant Gen10 servers. The ECC Load Reduced DIMMs operate at 1.2V with CL21 latency and a 4Rx4 rank structure. They are intended for workloads that require large capacity and error correction in compatible server platforms.

Sustained load behaviour

Load Reduced technology reduces electrical load on the memory bus so the system can populate more slots without signal degradation. ECC corrects single-bit errors during continuous operation. Backward compatibility with 2133MHz, 2400MHz and 2666MHz allows the modules to run at lower speeds if the platform requires it.

Pre-order checks

Verify that your server model is listed: BL460c Gen10, DL325 Gen10, DL360 Gen10, DL380 Gen10 or DL385 Gen10. Confirm the platform supports DDR4 ECC LRDIMM and cannot mix these modules with unbuffered or registered ECC DIMMs. Check available 288-pin slots and maximum supported capacity per socket.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $1,517.99
Pricier than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.93 per GB
Cheaper than about 66% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number2L9D44R4256P
Total capacity256 GB (2 × 128 GB)
Product type288-Pin DDR4 ECC LRDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP ProLiant BL460c Gen10
HP ProLiant DL325 Gen10
HP ProLiant DL360 Gen10
HP ProLiant DL380 Gen10
HP ProLiant DL385 Gen10

Other versions of this model

5 more in the same range

Questions about this item

How much power does the 1.2V DDR4 2933 LRDIMM draw when the server runs all day?

The modules operate at 1.2V, the standard DDR4 voltage, so power draw stays within normal server DIMM limits for continuous 24/7 workloads.

What must the HP ProLiant Gen10 already have to accept this 256GB 4Rx4 ECC Load Reduced kit?

The server must support DDR4 ECC Load Reduced DIMMs and have free 288-pin slots; it cannot mix these LRDIMMs with unbuffered or standard registered ECC modules.

Will these 2933MHz CL21 sticks down-clock reliably beside older 2133MHz or 2400MHz DIMMs I keep installed?

Yes, the kit is backward compatible with 2133MHz, 2400MHz and 2666MHz speeds, so it will run at the lowest common frequency alongside existing modules.

More in Model-Specific Memory Upgrades

Similar items