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
Green rectangular DDR4 DIMM with black chips and gold contacts

A-Tech

A-Tech 16GB DDR4 2133MHz ECC RDIMM 2Rx8 CL15 1.2V server RAM

SKU CH-CTGP-4K7Y4

16 GB DDR4 2133 MHz ECC registered DIMM for Samsung-compatible servers

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetSamsung Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 16GB DDR4 server memory expands capacity
  • ECC RDIMM with 2Rx8 rank corrects data errors
  • CL15 latency at 2133MHz delivers responsive throughput
  • 2V standard voltage keeps power draw low
  • 288-pin DIMM fits registered DDR4 server slots

16GB DDR4 ECC RDIMM for Servers

This 16GB DDR4 module runs at 2133MHz with CL15 latency and 1.2V operation. It uses a registered 2Rx8 organisation and Samsung chipset for error-correcting stability. The 288-pin DIMM fits standard DDR4 server slots. It targets administrators upgrading compatible Samsung M393A2K43BB1-CPB or M392A2K43BB0-CPB configurations.

Registered DIMM Integration Requirements

The registered buffer reduces electrical load on the memory controller, allowing higher capacities per channel. Your motherboard must support DDR4 RDIMM topology and ECC functionality. Unbuffered consumer boards will not accept this module. The 1.2V standard voltage matches DDR4 server specifications without extra power tuning.

Sustained Workload Stability

ECC circuitry corrects single-bit errors during continuous operation, preventing silent data corruption. Registered signalling maintains signal integrity across fully populated channels under prolonged load. The CL15 timing and 2133MHz data rate deliver consistent throughput for virtualisation and database tasks. Modules are tested for reliability before shipment.

How it compares

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

Price $87.99
Cheaper than about 73% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $5.50 per GB
Cheaper than about 69% of the 6,064 comparable items (median $7.25 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 nameA-Tech
Product lineCompatible Replacement for Samsung
Model nameM393A2K43BB1-CPB, M392A2K43BB0-CPB
Total capacity16 GB
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetSamsung Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Power
Rated voltage1.2 V

Questions about this item

Will the 2Rx8 rank configuration limit the number of modules I can populate per channel?

The 2Rx8 dual-rank design counts as two logical ranks per module; most server platforms allow up to eight ranks per channel, so you can typically install up to four of these 16 GB sticks per channel before hitting the rank limit.

Does the registered ECC design increase heat or power draw compared with unbuffered DDR4?

The register adds negligible power — the module runs at the standard 1.2 V DDR4 voltage — and because it operates at 2133 MHz CL15, thermal output stays within normal DDR4 limits for continuous server workloads.

My motherboard has 288-pin DDR4 slots; will this 262-pin module fit?

The spec lists a 262-pin form factor, which is a SO-DIMM layout, while your board uses 288-pin DIMM slots; the two are physically incompatible, so this module will not install in a standard server motherboard.

More in ECC Server RAM

Similar items