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Four green DDR3 DIMMs with gold contacts, 240-pin registered ECC memory kit

Computer Memory Solutions

Computer Memory Solutions CM20487210600ECCR2R4H 64GB (4x16GB) DDR3 1333 ECC Registered DIMM

SKU CH-D0G4-M5KA2

64GB quad-channel DDR3 1333 registered ECC kit validated for Dell PowerEdge R720Xd servers

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL9
  • Memory timings9-9-9
  • Rated voltage1.5 V
  • 64 GB total capacity in a matched 4-module kit
  • ECC registered design detects and corrects single-bit errors for server stability
  • 1333 MHz DDR3 speed rated at PC3-10600 for Dell PowerEdge R720Xd
  • 2Rx4 organisation with CL9 9-9-9 timings at 1.5 V
  • 240-pin DIMM form factor fits the system's 24 registered DIMM sockets

System-Specific DDR3 Memory Kit

This 64 GB kit contains four 16 GB registered ECC DIMMs built for the Dell PowerEdge R720xd. The modules run at DDR3 1333 with CL9 timings and 1.5 V operation. Quad-rank 2Rx4 organisation fills four of the system's 24 sockets. Computer Memory Solutions guarantees compatibility with the listed server.

Suited For Single-Server Upgrades

Ideal for administrators expanding one R720xd to 64 GB or replacing failed sticks with matched registered ECC modules. Not for workstations or desktops that require unbuffered memory. Buyers who need the full 512 GB maximum capacity should plan additional kits. Mixing registered and unbuffered ECC in the same bank is not supported by the platform.

Registered ECC With Quad-Rank Layout

The 2Rx4 quad-rank design is the specification that decides fit: the R720xd accepts registered ECC only and forbids mixing ranks within a bank. Each DIMM uses major-brand chips on a 240-pin PCB. Heat spreader presence varies by inventory lot. The kit delivers 64 GB toward the 384 GB registered ceiling.

How it compares

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

Price $89.99
Cheaper than about 69% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $1.41 per GB
Cheaper than about 95% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM20487210600ECCR2R4H
Total capacity64 GB (4 × 16 GB)
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1333 (PC3 10600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL9
Memory timings9-9-9
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderBased on Current Inventory (If Required Please Contact)
Power
Rated voltage1.5 V
Compatibility
Compatible systemsDell Poweredge R720Xd
In the box
Included items3 Memory RAM Sticks

Questions about this item

Will the 1.5V voltage and registered design limit how many 16GB modules the R720Xd can take?

The R720Xd supports up to 24 registered DIMM sockets for a maximum of 384GB using 16GB modules, so this 64GB kit fits well within that limit.

Does the registered ECC design change heat or fan noise compared with unbuffered memory in a 24-slot R720Xd?

Registered modules add a buffer chip that draws slightly more power per stick, but at 1.5V and 1333MHz the thermal load is similar to unbuffered ECC; the server's existing cooling handles both types without extra fan speed.

The kit lists four 16GB sticks but the package content says three — which count is correct for a quad-channel R720Xd?

The model number CM20487210600ECCR2R4H and the 64GB (4 x 16GB) specification confirm four modules; the three-stick mention appears to be a data error.

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