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 bags

OWC

OWC 512GB (8x64GB) DDR4 2400 CL17 4Rx4 288-pin 1.2V ECC LRDIMM Kit for Cisco UCS C240 M4

SKU CH-CMMX-KHTC1

Eight 64 GB DDR4 2400 CL17 ECC load-reduced DIMMs totalling 512 GB for Cisco UCS C240 M4 servers

  • Capacity512GB (8 x 64GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.2V
  • ECCYes

Capacity 512GB (8 x 64GB)

  • 512GB total capacity across eight 64GB modules
  • DDR4 2400 CL17 speed with 1.2V operation
  • ECC load-reduced 4Rx4 design for server reliability
  • 288-pin LRDIMM form factor fits Cisco UCS C240 M4
  • Backward compatible with 2133MHz systems for flexible deployment

Cisco UCS C240 M4 Memory Kit

This 512GB kit contains eight 64GB DDR4 2400 ECC Load Reduced DIMMs built for the Cisco UCS C240 M4 server. The 288-pin modules run at CL17 latency and 1.2V to match the platform's registered memory architecture.

ECC Load Reduced Architecture

Error-correcting code protects data integrity while the load-reduced design lowers electrical load on the memory bus, allowing all eight slots to be populated without signal degradation. This memory cannot be mixed with unbuffered or standard registered DIMMs.

512GB Capacity With 2133MHz Fallback

The full kit delivers 512GB for virtualisation density, in-memory databases or large-scale compute workloads. Modules automatically operate at 2133MHz if the system requires the lower speed, preserving compatibility across supported configurations.

Highlights

  • 512GB total capacity across eight 64GB modules
  • DDR4 2400 CL17 speed with 1.2V operation
  • ECC load-reduced 4Rx4 design for server reliability
  • 288-pin LRDIMM form factor fits Cisco UCS C240 M4
  • Backward compatible with 2133MHz systems for flexible deployment

Specifications

BrandOWC
Part Number2L4D44R4512K
Capacity512GB (8 x 64GB)
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemCisco UCS C240 M4

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will any of the 64GB LRDIMM modules need replacing during the server's normal service life?

The eight 64GB modules are solid-state with no moving parts; under normal server workloads they do not require scheduled replacement.

What limits sustained throughput when the Cisco UCS C240 M4 runs this 512GB kit at full load?

The CL17 latency and 2400 MT/s data rate set the bandwidth ceiling for continuous memory-intensive tasks.

How much heat does the kit produce when all eight modules run at 1.2 V all day?

Each module operates at 1.2 V without a heat spreader; total power draw stays within standard LRDIMM limits for the C240 M4 chassis cooling.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.