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Green rectangular DDR3 ECC UDIMM 240-Pin memory module with gold contacts and black chips

A-Tech

A-Tech 4GB DDR3 1333 ECC UDIMM 240-Pin memory upgrade

SKU CH-YVGB-XCQEX

4GB DDR3 1333 ECC UDIMM module for Mac Pro Mid 2010 and Mid 2012 systems

  • Total capacity4 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Compatible systemsApple Mac Systems
  • 4GB DDR3 1333MHz ECC UDIMM expands Mac Pro memory capacity
  • ECC error correction protects data integrity on compatible Xeon workstations
  • 240-pin unbuffered design fits Mid 2010 and Mid 2012 Mac Pro towers
  • 50V operation matches Apple factory specifications for reliable stability
  • Major-brand chips tested to stringent quality standards for dependable performance

Targeted Mac Pro Upgrade

This 4 GB DDR3 1333 ECC UDIMM module is built for Apple Mac Pro towers from Mid 2010 and Mid 2012 with 6-Core or 12-Core Xeon processors. It matches the exact PC3-10600 specification required by MacPro5,1 systems identified as A1289. The single 240-pin DIMM installs directly into the available memory slots to increase total system capacity.

Build Integration

The unbuffered ECC design operates at the standard 1.50 V used by these Mac Pro models, requiring no voltage adjustment or firmware changes. Each module uses major-brand chips validated for Apple order numbers including MD771LL/A. Adding this stick frees the memory controller from paging pressure when running multiple professional applications simultaneously.

Sustained Workload Behaviour

ECC error correction detects and corrects single-bit errors in real time, preventing data corruption during long rendering or compute sessions. The 2Rx8 rank organisation maintains stable throughput across all populated channels under continuous load. Rigorous component testing ensures the modules maintain rated 1333 MHz speeds without throttling during extended operation.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $4.50 per GB
Cheaper than about 81% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR3 Apple Mac RAM Memory Upgrades
Total capacity4 GB
Performance
Rated speedDDR3 1333 (PC3 10600)
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportYes
Buffer typeUnbuffered
Power
Rated voltage1.5 V
Compatibility
Compatible systemsApple Mac Systems

Questions about this item

What is the maximum capacity per module this Mac Pro memory slot accepts?

Each slot takes a 4 GB DDR3 1333 ECC UDIMM module; this stick provides exactly that capacity.

How much power does the 1.50 V DDR3 1333 module draw under continuous load?

The module runs at the standard 1.50 V DDR3 voltage, keeping heat and power draw low during all-day operation.

Which Mac Pro model identifier must the buyer already own for this 240-pin ECC UDIMM to work?

The memory is validated for MacPro5,1 systems (Mid 2010 and Mid 2012 6-Core and 12-Core models).

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