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
Four green DDR4 DIMM sticks, 288-pin, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM2048722666ECCNR 64GB (4x16GB) DDR4 2666 ECC memory upgrade

SKU CH-6R7P-KSC43

64 GB DDR4 ECC kit with four 16 GB modules at 2666 MHz CL19 for Dell PowerEdge R240 and R340 servers

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 64 GB total capacity supports demanding server workloads
  • ECC protection detects and corrects single-bit memory errors
  • DDR4 2666 speed matches Dell PowerEdge R240 and R340 specifications
  • Four 16 GB unregistered DIMMs fill all four memory slots
  • Low 1.2 V operation reduces power draw and heat

64GB DDR4-2666 ECC kit for Dell PowerEdge

This 64GB kit contains four 16GB DDR4-2666 ECC unregistered DIMMs built for Dell PowerEdge R240 and R340 servers. Each module runs at 1.2V with CL19 timing and a 2Rx8 organisation. The 288-pin design matches the memory slots in those systems.

Sustained load behaviour with ECC and CL19

Error-correcting code detects and corrects single-bit errors during continuous operation, protecting data integrity in long-running workloads. The CL19 latency and 2666 MT/s data rate deliver steady throughput for multi-threaded server tasks. Unregistered signalling keeps the command path direct for consistent response under load.

Platform limits: four slots and 64GB maximum

The PowerEdge R240 and R340 each provide four DIMM sockets and a 64GB memory ceiling, so this kit fills every slot and reaches the platform limit. Faster modules will automatically clock down to 2666 MT/s to match the processor's memory controller. No additional capacity can be added once all four sockets are populated.

How it compares

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

Price $214.99
Cheaper than about 58% 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 $3.36 per GB
Cheaper than about 88% 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 nameComputer Memory Solutions
Model nameCM2048722666ECCNR
Total capacity64 GB (4 × 16 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
Memory timings19-19-19
ECC supportYes
Buffer typeUnregistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell Poweredge R240, Poweredge R340
In the box
Included items4 Memory Ram Sticks

Questions about this item

How much heat and power does this 1.2 V DDR4 2666 ECC kit draw when the server runs continuously?

At 1.2 V the four unregistered DIMMs run at standard DDR4 voltage, so heat output and power draw stay at typical DDR4-2666 levels for 24/7 operation.

What must my Dell PowerEdge already have for these four 16 GB modules to work?

The R240 or R340 needs four free 288-pin DDR4 slots and a processor that supports ECC unregistered memory up to 64 GB total.

Will the CL19 2666 MHz sticks run at full speed beside older DDR4 modules I keep in the same server?

All installed DDR4 will clock to the lowest common speed; if older modules are slower than 2666 MHz the new kit will downclock to match.

More in Model-Specific Memory Upgrades

Similar items