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
Eight green DDR4 LRDIMM modules in anti-static tray

OWC

OWC 512GB (8×64GB) DDR4 2400 CL17 4Rx4 288-pin 1.2V ECC LRDIMM memory upgrade

SKU CH-JNZW-214R6

Eight 64 GB DDR4 2400 CL17 ECC LRDIMMs totalling 512 GB for Cisco HX220c M4 and HX240c M4 servers

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Memory rank4Rx4

Capacity 512GB (8 x 64GB)

  • 512 GB total capacity from eight 64 GB modules
  • ECC load-reduced design protects data integrity in servers
  • DDR4 2400 speed with CL17 latency for responsive performance
  • 2 V operation reduces power draw in dense configurations
  • Compatible with Cisco HX220c M4 and HX240c M4 systems

512 GB DDR4 LRDIMM kit for Cisco HX servers

This kit supplies 512 GB of DDR4 2400 memory using eight 64 GB ECC load-reduced DIMMs. It is built for Cisco HX220c M4 and HX240c M4 servers that require registered, error-correcting modules.

Replaces Cisco UCS-ML-1X644RVA modules

The upgrade swaps out lower-capacity or slower DDR4 sticks and adds 4Rx4 organisation at 1.2 V. The jump is worth it when the workload needs maximum DIMM slots filled with 64 GB modules and the platform accepts load-reduced ECC only.

DDR4 2400 load-reduced interface limits

The modules run at PC4-19200 with CL17 latency and are backward compatible with 2133 MHz operation. They cannot be mixed with unbuffered or standard registered ECC DIMMs, and they will not work in desktop or consumer motherboards.

How it compares

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

Price $3,349.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $6.54 per GB
Cheaper than about 60% 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 number2L4D44R4512K
Total capacity512 GB (8 × 64 GB)
Product type288-Pin DDR4 ECC LRDIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsCisco HX220c M4
Cisco HX240c M4

Other versions of this model

5 more in the same range

Questions about this item

Will the 288-pin DDR4 LRDIMM modules fit the memory slots in a Cisco HX220c M4 server?

Yes, the 288-pin DDR4 LRDIMM form factor matches the DIMM slots in the Cisco HX220c M4 and HX240c M4 servers listed for this upgrade kit.

What is the correct installation sequence for the eight 64 GB modules, and what step is commonly missed?

Populate all eight slots following the Cisco HX220c M4 or HX240c M4 memory population guide; the step often missed is ensuring every slot receives a 4Rx4 LRDIMM so the memory controller trains at 2400 MHz with ECC load-reduced operation.

When will the 1.2 V DDR4 2400 CL17 LRDIMMs need replacement in a Cisco HX240c M4?

The modules carry a limited lifetime warranty and have no scheduled replacement interval; replace only if a module fails diagnostics or the server firmware reports a correctable ECC error threshold breach.

More in Model-Specific Memory Upgrades

Similar items