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Green 240-pin DDR3 ECC UDIMM module with black chips

A-Tech

A-Tech 4GB DDR3 1066 ECC UDIMM memory upgrade for Mac Pro 2009-2012

SKU CH-QRHF-1T3VJ

Adds 4 GB of DDR3 1066 ECC UDIMM memory to compatible Mac Pro and Xserve systems

  • Capacity4GB
  • SpeedDDR3 1066 (PC3 8500)
  • Voltage1.50V
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor Brand Chipset
  • Boosts multitasking with 4GB DDR3 1066 capacity
  • ECC unbuffered design protects data integrity
  • Certified for Mac Pro 2009‑2012 and Xserve
  • 240‑pin UDIMM fits original memory slots
  • Major-brand chips tested to strict quality standards

What this module is and who it serves

This is a 4 GB DDR3 1066 MHz ECC UDIMM built for Apple Mac Pro towers from Early 2009 through Mid 2012 and Xserve models from Early 2009. It installs in 240‑pin slots and runs at 1.50 V with unbuffered ECC. The kit targets owners of those specific Mac systems who need a straightforward memory increase.

Who should buy it and who should not

It suits Mac Pro 4,1 and 5,1 users matching order numbers such as MB449LL/A, MC560LL/A or MD770LL/A, plus Xserve 3,1 units. It will not fit machines that require registered DIMMs, a different pin count, or a non‑ECC memory type. Buyers with later Mac Pro models or standard PC motherboards should verify compatibility before ordering.

The spec that decides fit

The decisive figure is the DDR3 1066 (PC3‑8500) ECC UDIMM 240‑pin specification at 1.50 V. Only systems listed in the Apple model IDs MacPro4,1, MacPro5,1 and Xserve3,1 with matching processor configurations will accept this module.

Points forts

  • Boosts multitasking with 4GB DDR3 1066 capacity
  • ECC unbuffered design protects data integrity
  • Certified for Mac Pro 2009‑2012 and Xserve
  • 240‑pin UDIMM fits original memory slots
  • Major-brand chips tested to strict quality standards

Caractéristiques

BrandA-Tech
SeriesA-Tech DDR3 Apple Mac RAM Memory Upgrades
Capacity4GB
SpeedDDR3 1066 (PC3 8500)
Voltage1.50V
ECCYes
Buffered/RegisteredUnbuffered
ChipsetMajor Brand Chipset
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Questions sur cet article

What comes in the box and do I need anything else to install it?

The box contains one 4 GB DDR3 1066 ECC UDIMM module. No extra parts or tools are required for installation in a compatible Mac Pro or Xserve.

How do I pick the right version for my Mac Pro?

Match your machine to the listed Apple order numbers such as MB449LL/A, MC560LL/A or MD770LL/A and the model IDs MacPro4,1 or MacPro5,1.

What does the 1066 MHz speed rating mean once the module is running in my Mac?

The memory will operate at 1066 MHz (PC3-8500) with ECC error correction, giving the rated bandwidth for the supported Xeon processors.

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