Upgrade the memory in select 2009-2010 Mac Pro systems or compatible PCs using the OWC 16GB DDR3 1066MHz DIMM Memory Kit for Macfrom OWC / Other World Computing. This memory kit features a total capacity of 16GB, which is made up of four 4GB modules. It features a clock speed of 1066 MHz, a bus speed of PC-8500, and a 240-pin DIMM form factor. It operates using 1.5V, 7-7-7-20 timings, and a module bandwidth of 8.5 GB/s. By offering ECC (Error Checking and Correcting) technology, this RAM will help your workstation encounter fewer errors that can corrupt data sets and introduce system issues. Additionally, this memory module is compatible with Apple Specified Thermal Sensor, which ensures that the RAM maintains a safe thermal operating range.

16GB (4 x 4GB) Capacity    1066 MHz Clock Speed    PC-8500    240-Pin DIMM    1.5V    7-7-7-20 Timings    ECC    Apple Thermal Sensor Compatible    Module Bandwidth: 8.5 GB/s    Compatible with Select Mac Pros

Model ID: MacPro4,1
Quad-Core: 2.66 GHz, 2.93 GHz, 3.33 GHz
Eight-Core: 2.26 GHz, 2.66 GHz, 2.93 GHz

Model ID: MacPro5,1
Quad-Core: 2.8 GHz, 3.2 GHz, 3.33 GHz
Eight-Core: 2.4 GHz

Model ID: Xserve3,1
Quad-Core: 2.26 GHz
Eight-Core: 2.26 GHz, 2.66 GHz, 2.93 GHz

Compatible with Intel / AMD-based PCs capable with the specifications listed above. Memory complies with JEDEC Specifications, document JESD79-3B.

Related Questions and Answers

Q: 1. Will these Mac kits work in a PC desktop with the same number of pins?

A: As these chips contain specific features for Apple compatibility, such as Apple Specified Thermal Sensor. This may or may not prevent the chip from working in a PC.

Q: 2. Can I install this in my MacBook Pro Mid 2010?Processor: 2.4 GHz Intel Core 2 DuoMemory: 4 GB 1067 MHz DDR3Graphics: NVIDIA GeForce 320M 256 MB

A: This kit is for an iMac with 4 memory slots. I would need to know the computer's serial number to point you to the correct memory modules.

Q: 3. Is this RAM compatible with this specifications?- PC3-10600E, 1333 MHz, DDR3 SDRAM UDIMMs and RDIMMs- Error-correcting code (ECC)- 72-bit wide, 240-pin ECC modules- 36 ICs maximum per ECC UDIMMIt's a mid 2012 12 core MACPROThanks

A: I put mine into a 2010 MacPro and it works perfectly

Q: 4. Hi, can this memory work in a Acer Aspire 5740-5749? (windows).The specification say memory for mac..

A: We specifically build our memory for Mac's, but most of the time it does work on PC's. The memory complies with JEDEC specifications, but there are far too many variables involved to tell you for certain.

Q: 5. will these work in a Mac Pro mid-2012 5.1 6-core machine?

A: If your Mid 2012 Mac Pro shipped with 1333Hz RAM it will be fully compatible with the computer. Note that some Mid 2012 models shipped with 1066MHz RAM. You can verify which your system uses by opening the System Information application in the Utilities folder.

Q: 6. Will this work on a late 2007 macbook pro?

A: I don't think so. What you need is: DDR2-667 SODIMM https://a href= http://www.bhphotovideo.com/c/product/1213048-REG/owc_other_world_computing_owc5300ddr2s4gp_4gb_memory_upgrade_kit.html target= _blank www.bhphotovideo.com/c/product/1213048-REG/owc_other_world_computing_owc5300ddr2s4gp_4gb_memory_upgrade_kit.html/a

Q: 7. Does this work for a mid 2011 27 iMac 3.1Ghz Intel Core i5?

A: No, this should be the correct memory for a 27 Mid-2011 (iMac 12,2).a href= https://www.bhphotovideo.com/c/product/1212947-REG/owc_other_world_computing_owc1333ddr3s32s_32gb_4_x_8gb.html target= _blank https://www.bhphotovideo.com/c/product/1212947-REG/owc_other_world_computing_owc1333ddr3s32s_32gb_4_x_8gb.html/a

Q: 8. Will this work in a Asus M5A78L-M/USB3 Motherboard?

A: From the limited specifications I can find on that motherboard, I believe the memory will work, but I cannot make any guarantee, as we have not tested this RAM with that motherboard.

Q: 9. Is it compatible with 2009 Mac Pro?

A: This would not work, I would suggest this 4GB option, please see link: a href= http://bhpho.to/1xLB0tY target= _blank http://bhpho.to/1xLB0tY/a

Q: 10. Can the 2 16GB modules be installed on an early 2009 24 inch iMac ?

A: Locate the Apple model number A.... And refer to the OWC website. Apple devices are very picky about memory specification. OWC has all tools on the website to check compatibility.