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, gold contacts, no heat spreader

SK hynix

SK hynix HMA42GR7MFR4N-TF 16GB DDR4-2133 ECC Registered CL15 Server RAM

SKU CH-XY1K-CNCWE

16 GB DDR4-2133 ECC registered DIMM with CL15 latency and 1.2 V operation

  • Total capacity16 GB
  • Rated speed2133
  • ChipsetMajor Brand Chipset
  • CAS latency15
  • Rated voltage1.2 V
  • ECC supportChipkill
  • ECC Chipkill protects data integrity in critical workloads
  • Registered signal processing stabilises high-density server configurations
  • DDR4-2133 speed delivers 17000 MB/s bandwidth for demanding applications
  • CL15 latency at 1.2 V balances responsiveness with power efficiency
  • 16 GB dual-rank 2Rx4 module fits 288-pin DIMM slots

16GB DDR4-2133 ECC Registered Server Memory

This 16GB DDR4 module runs at 2133 MHz with CL15 latency and 1.2V voltage. It features ECC Chipkill error correction and registered signal processing for data integrity. The dual-rank 2Rx4 organisation suits multi-channel server configurations. It targets administrators upgrading or repairing registered-DIMM platforms.

Thermals noise and power draw

Operating at the standard 1.2V DDR4 voltage keeps power draw low for dense server deployments. No heat spreader is fitted, so airflow across the bare PCB manages thermals. Registered buffering reduces electrical load on the memory controller. Silent passive cooling suits rack environments with controlled airflow.

ECC Chipkill and registered buffering

ECC Chipkill corrects multi-bit errors that standard ECC cannot handle, improving uptime. Registered signal processing stabilises command and address lines across full memory populations. The 288-pin DIMM form factor fits standard DDR4 server slots. Buyers needing unbuffered or non-ECC modules for workstations should look elsewhere.

How it compares

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

Price $55.99
Cheaper than about 82% 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).
CAS latency 15
Lower than about 93% of the 439 comparable items (median 40).
Price per GB $3.50 per GB
Cheaper than about 85% 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 nameSK Hynix
Product lineECC-REG
Model nameHMA42GR7MFR4N-TF
Total capacity16 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speed2133
Processor
ChipsetMajor Brand Chipset
Memory
CAS latency15
ECC supportChipkill
Buffer typeRegistered
Memory rank2Rx4
Kit configurationQuad Channel Kit
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

How do I install the 288-pin DDR4 DIMM and which notch orientation is the step people get wrong?

Align the single key notch on the 288-pin DDR4 DIMM with the slot’s matching tab; the notch is off-centre, so press straight down until both retention clips click — forcing it backwards bends pins.

What maintenance or replacement will the 16GB ECC Chipkill registered module need later?

No scheduled maintenance is required; if a correctable error rate climbs or the server logs uncorrectable errors, replace the affected 16GB module — dust the slots with compressed air during any chassis service.

What limit appears first on this 2133 MHz CL15 1.2 V dual-rank kit under sustained load?

The JEDEC 1.2 V voltage ceiling is reached before thermal throttling; sustained writes at 2133 MHz keep the DRAM at its rated voltage, so the power envelope is the first hard limit.

More in ECC Server RAM

Similar items