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 288-pin DDR4 RDIMM module with black chips, no heat spreader

SAMSUNG

SAMSUNG M393A2K40BB0-CPB 16GB DDR4 2133 ECC Registered server RAM

SKU CH-GPNB-X1PVZ MPN M393A2K40BB0-CPB

16 GB DDR4-2133 ECC registered RDIMM, CL15 latency, 1.20 V, model M393A2K40BB0-CPB B

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank1Rx4
  • 16 GB capacity supports demanding server workloads
  • DDR4 2133 speed delivers PC4 17000 bandwidth
  • ECC Registered design detects and corrects memory errors
  • CL15 CAS latency provides responsive data access
  • 20 V operation reduces power consumption
  • 288-pin RDIMM form factor fits standard server slots

16GB DDR4 2133 ECC Registered module

This 16GB DDR4 2133 module is built for servers and workstations that require error-correcting registered memory. It operates at PC4 17000 with a CAS latency of CL15 and a voltage of 1.20V. The 1Rx4 rank organisation suits dense multi-slot configurations.

288-pin registered DIMM without heat spreader

The 288-pin DDR4 form factor fits standard registered DIMM slots in compatible server platforms. Registered buffering reduces electrical load on the memory controller for stable operation across populated channels. The absence of a heat spreader keeps the profile low for tight chassis spacing.

ECC protection for data integrity

On-die ECC detects and corrects single-bit errors to maintain data accuracy in critical workloads. Registered signalling improves command timing margins in multi-module arrays. No additional accessories or software utilities are included with the module.

How it compares

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

Price $69.99
Cheaper than about 78% 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 $4.37 per GB
Cheaper than about 78% 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 nameSAMSUNG
Model nameM393A2K40BB0-CPB
Total capacity16 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Size & build
Shipping weight0.14 kg
Package size165 × 51 × 13 mm

Questions about this item

What does the DDR4 2133 (PC4 17000) rating cap the data rate at in practice?

The module runs at 2133 MT/s, so the peak transfer rate is limited to the PC4 17000 bandwidth ceiling.

What physical slot and clearance does the 288-pin registered DIMM require?

It needs a standard 288-pin DDR4 DIMM socket; the module has no heat spreader, so it fits in tight server bays.

How is the 1Rx4 registered ECC module installed, and what step is often missed?

Align the notch with the keyed slot, press firmly until both retention clips click, then verify the BIOS recognises the ECC and registered mode.

More in ECC Server RAM

Similar items