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Green rectangular DDR4 DIMM with black chips and gold contacts

Axiom

Axiom 16GB DDR4 2400 ECC Registered CL17 1.20V 288-pin 805349-B21-AX server RAM

SKU CH-EZ0H-XXKFQ MPN 805349-B21-AX

16 GB DDR4 ECC registered DIMM running at 2400 MT/s with CL17 latency at 1.20 V

  • Total capacity16 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Product type288-Pin DDR4 SDRAM
  • ECC protection guards data integrity in critical workloads
  • Registered design stabilises signals for dense server configurations
  • 16 GB capacity expands memory headroom for virtualisation
  • DDR4 2400 speed delivers 19200 MT/s bandwidth
  • Low 1.20 V operation reduces power draw per module

16GB DDR4-2400 ECC Registered DIMM

This 16GB DDR4 module runs at 2400 MT/s with CL17 latency and 1.20 V operation. It is built for servers and workstations that require error-correcting code and registered buffering for data integrity.

ECC and registered buffering protect data integrity

The module includes ECC to detect and correct single-bit errors automatically. Registered buffering reduces electrical load on the memory controller, allowing larger memory populations in multi-socket platforms.

Verify DDR4 288-pin registered support

Confirm your motherboard accepts DDR4 288-pin registered DIMMs and supports 2400 MT/s operation. Systems limited to unbuffered memory or lower speeds cannot use this module.

How it compares

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

Price $290.99
Pricier than about 60% 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 $18.19 per GB
Pricier than about 79% 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 nameAxiom
Model name805349-B21-AX
Total capacity16 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportYes
Buffer typeRegistered
Power
Rated voltage1.2 V
Size & build
Shipping weight0.54 kg
Package size157 × 107 × 56 mm

Questions about this item

Will the registered ECC DDR4 2400 module require any firmware updates or component replacements during its service life?

The 16 GB DDR4 2400 CL17 registered ECC DIMM has no moving parts and no field-replaceable components; it operates at 1.20 V and does not require firmware updates or scheduled replacements.

What limits sustained throughput when the 288-pin DDR4 2400 registered ECC memory runs continuously at full load?

Sustained throughput is bounded by the DDR4 2400 (PC4 19200) data rate and CL17 latency; the registered buffer adds one cycle but prevents signal degradation at full population.

How much heat and power does the 1.20 V 16 GB DDR4 2400 registered ECC DIMM produce when the server runs all day?

At 1.20 V the module draws minimal power typical for DDR4 2400 registered ECC; heat output stays low enough for standard server airflow without extra cooling.

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