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Green 288-pin DDR4 server memory module, 32GB, no heat spreader

SAMSUNG

SAMSUNG 3SA266619R5-32GPBOP- 32GB DDR4 2666 ECC Registered server RAM

SKU CH-VMA7-JTNXB MPN 3SA266619R5-32GPBOP-

32 GB DDR4 ECC registered server memory at 2666 MT/s with CL17 timing and 1.20 V operation

  • Total capacity32 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 32 GB capacity supports demanding server workloads
  • DDR4 2666 speed delivers 21300 MT/s data rate
  • ECC Registered design protects data integrity in critical systems
  • CL17 17-17-17 timing provides low-latency response
  • 20 V operation reduces power draw per module

32GB DDR4 2666 ECC Registered Module

This 32GB DDR4 2666 module targets servers and workstations that require error-correcting registered memory. It delivers 32GB capacity at 2666 MT/s with CL17 latency and 1.20V operation. The 2Rx4 organisation suits multi-channel configurations in compatible platforms. Buyers needing non-ECC or unbuffered DIMMs should choose a different product.

Thermals Noise and Power

The module runs at the standard DDR4 voltage of 1.20V without a heat spreader, relying on chassis airflow for cooling. Registered operation adds a clock cycle of buffering, which marginally increases power draw compared with unbuffered equivalents. No active cooling is present, so acoustic output depends entirely on system fans. Builds with restricted airflow must verify thermal headroom independently.

Build Integration

The 288-pin DDR4 form factor fits any slot wired for DDR4 registered memory, but the motherboard and CPU must explicitly support ECC and registered DIMMs. The 2Rx4 rank structure counts as two logical ranks per channel, which may limit maximum populated slots on some platforms. Systems requiring consumer SO-DIMMs or non-ECC UDIMMs cannot use this module.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $152.99
Cheaper than about 56% of the 6,523 comparable items (median $188.99).
Total capacity 32 GB
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $4.78 per GB
Cheaper than about 75% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameSAMSUNG
Model nameM393A4K40BB2-CTD
Total capacity32 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL17
Memory timings17-17-17
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Size & build
Shipping weight0.07 kg
Package size165 × 51 × 13 mm

Questions about this item

How do I install the 288-pin DDR4 module and which keying notch do I line up?

Align the off-centre notch on the 288-pin edge connector with the motherboard slot key; press straight down until both side clips click — forcing it backwards bends pins.

What maintenance will the 32GB ECC registered module need later?

No scheduled maintenance; ECC corrects single-bit errors on the fly, but if multi-bit errors appear in system logs the DIMM should be replaced.

What limit appears first when the CL17 2666 MT/s kit runs sustained workloads?

The 1.20 V operating voltage and lack of a heat spreader mean thermal throttling can occur before bandwidth saturates.

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