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Green 240-pin DDR3L UDIMM with black chips, 1Rx8 layout

A-Tech

A-Tech 4GB DDR3L 1333 ECC UDIMM 1Rx8 1.35V Server RAM

SKU CH-ECBJ-843Y9

4GB DDR3L 1333 ECC UDIMM module with 1Rx8 layout runs at 1.35V for low-power server upgrades

  • Capacity4GB
  • SpeedDDR3L 1333 (PC3L 10600)
  • CAS LatencyCL9
  • Voltage1.35V
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ECC protection guards data integrity in servers
  • 35V DDR3L cuts power draw and heat
  • 1333MHz CL9 speed handles heavy workloads
  • 240-pin UDIMM fits standard server slots
  • Tested Micron-compatible replacement ensures reliable operation

Capacity and form factor

This A-Tech module delivers 4 GB of DDR3L memory in a 240-pin UDIMM package. It is built for servers and workstations that require ECC protection and low-voltage operation at 1.35 V.

Who it suits and who it does not

The stick fits systems that accept DDR3L 1333 unbuffered ECC DIMMs with a 1Rx8 organisation. Buyers whose platforms demand registered memory, higher densities, or a different DDR generation should look elsewhere.

Deciding specification

The module runs at DDR3L 1333 (PC3L-10600) with CL9 latency and 1.35 V; matching those three values to the motherboard's supported memory list is the single check that confirms compatibility.

Points forts

  • ECC protection guards data integrity in servers
  • 35V DDR3L cuts power draw and heat
  • 1333MHz CL9 speed handles heavy workloads
  • 240-pin UDIMM fits standard server slots
  • Tested Micron-compatible replacement ensures reliable operation

Caractéristiques

BrandA-Tech
SeriesCompatible Replacement for Micron
ModelMT9KDF51272AZ-1G4E1
Capacity4GB
SpeedDDR3L 1333 (PC3L 10600)
CAS LatencyCL9
Voltage1.35V
ECCYes
Buffered/RegisteredUnbuffered
Rank1Rx8
ChipsetMicron Chipset
FeaturesMT9KDF51272AZ-1G4E1

Questions sur cet article

How much heat does the 1.35V DDR3L module add when running continuously in a server?

The 1.35V DDR3L voltage reduces power draw compared to standard 1.5V DDR3, so the 4GB stick generates less heat during all-day workloads.

Does my motherboard need a 240-pin DDR3 slot that supports ECC unbuffered memory?

Yes — this is a 240-pin DDR3L UDIMM with ECC, so the board must accept unbuffered ECC modules at 1.35V.

Can I mix this 1Rx8 PC3L-10600 stick with older 1.5V DDR3 DIMMs?

Mixing 1.35V DDR3L with 1.5V DDR3 is not recommended; the system will default to the higher voltage and may destabilise the low-voltage module.

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