OWC / Other World Computing 8GB DDR3 1066 MHz DIMM Memory Kit (2 x 4GB, Mac)

OWC / Other World Computing 8GB DDR3 1066 MHz DIMM Memory Kit (2 x 4GB, Mac)

OWC / Other World Computing 8GB DDR3 1066 MHz DIMM Memory Kit (2 x 4GB, Mac)

B&H # OW85MP3W4M08 MFR # OWC85MP3W4M08GK
Special Order
Expected availability: 7-10 business days

Product Highlights

  • 8GB (2 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
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$0.00 Tax Collected Outside NY and NJ

You Pay: $49.38

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  • 1Description

Upgrade the memory in select 2009-2010 Mac Pro systems or compatible PCs using the 8GB DDR3 1066 MHz DIMM Memory Kit from OWC / Other World Computing. This memory kit features a total capacity of 8GB, which is made up of two 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.


Mac Pro (March 2009)
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
Mac Pro (July 2010)
Model ID: MacPro5,1
Quad-Core: 2.8 GHz, 3.2 GHz, 3.33 GHz
Eight-Core: 2.4 GHz
Xserve (April 2009)
Model ID: Xserve3,1
Quad-Core: 2.26 GHz
Eight-Core: 2.26 GHz, 2.66 GHz, 2.93 GHz
PC Desktops
Compatible with Intel / AMD-based PCs capable with the specifications listed above. Memory complies with JEDEC Specifications, document JESD79-3B.
UPC: 794504324952
In the Box
OWC / Other World Computing 8GB DDR3 1066 MHz DIMM Memory Kit (2 x 4GB, Mac)
  • Limited Lifetime Warranty
  • Table of Contents
    • 1Description
    Capacity 8 GB
    Kit Configuration 2 x 4 GB
    Speed PC3-8500 (1066 MHz)
    Memory Type DDR3
    DIMM Type 240-Pin DIMM
    Buffered/Registered Not Specified by Manufacturer
    Error Correction (ECC) ECC
    Voltage 1.5 V
    CAS Latency CL7
    Memory Rank Dual Rank
    Packaging Info
    Package Weight 0.2 lb
    Box Dimensions (LxWxH) 6.2 x 4.0 x 1.3"
    8GB DDR3 1066 MHz DIMM Memory Kit (2 x 4GB, Mac) is rated 1.0 out of 5 by 2.
    Rated 1 out of 5 by from All Wrong The information on the B+H site did not help in determining if this was compatible with my computer. It wasn't! Should not have bought it here. I wound up buying the right one elsewhere. I hope they fix this!
    Date published: 2017-01-24
    Rated 1 out of 5 by from I will never deal with B&H Photo-Video-Pro Video again. I ordered OW85MP3W4M08 8GHz of RAM consisting of two 4 GHz boards from B&H Photo-Video-Pro Audio. The order consisted of two 4 GHz boards. I received 8 GHz consisting of two 4 GHz board, but that is where the similarity ends. The boards I received look nothing like those I ordered. The RAM I ordered was to operate at 1066 MHz, but those I received, OWC1333D3ECC4GB, indicates they operate at 1333 MHz. Who is in error is equally baffling. I ordered from B&H. The item I received came from B&H. The item is marked with the OWC logo, and some of the numbers start with OWC. Research shows that OWC stands for Other World Computing, however the carton states that the OWC logo is the trademark of New Concepts Development Corp. When I requested an RMA & refund, B&H referred to their vender, without naming same, who apparently said that I received two 4 GB of RAM for a total of 8 GB which is what I ordered. B&H refused to issue and RMA, neither would they refund my payment. (Add an Image doesn't appear to work or I would include a picture of the item I received so it could be compared to the item above.) B&H has the picture, so you know the difference.
    Date published: 2017-03-10
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