Brand ===Please Select Brand=== Acer Adaptec AIC Aopen Apple ARBOR ASRock ASUS BCM Biostar Blackmagic Design Canon Cisco ClearCube Clevo Dell/Alienware DFI Dynabook EliteGroup (ECS) Epson EVGA Foxconn Fuji Fujitsu Gateway Getac Gigabyte GoPro Hitachi HP/Compaq Huawei IBM Intel Lenovo LG Electronics MEDION MiTAC MSI NEC Nikon Nutanix Packard Bell Panasonic Portwell QNAP Quanta Razer Samsung Sapphire Shuttle Siemens Nixdorf Sony Supermicro Synology Toshiba Twinhead Tyan Computers Via ViewSonic Wiwynn ZOTAC Series ===Please Select Series=== iBook iMac Mac Mac mini Mac mini Server Mac Pro MacBook MacBook Air MacBook Pro PowerBook Xserve Model ===Please Select Model=== Mac Pro, Late 2013 (macOS High Sierra 10.13 or later) Mac Pro, Late 2013 Mac Pro, Mid 2012 Mac Pro, Mid 2010 Mac Pro, 2019 Mac Pro, Early 2009 - MB535LL/A Mac Pro, Early 2009 - MB871LL/A MacPro1.1 Keyword The database for compatibility check is established according to the results of Transcend's internal test, and is only for your reference to choose suitable Transcend products. Please be aware of assembly restrictions as some SSD products come with a heatsink, such as the PCIe SSD 250H which comes with a metal heatsink. Mac Pro, Mid 2012 Standard Memory : 6/8/12 GB (Removable) Maximum Memory : 32 GB Quad-Core single CPU;64 GB 12-Core two CPU Slots : 4 Sockets Quad-Core single CPU; 8 Sockets 12-Core two CPU CPU / Chipsets : Intel Xeon 3500 series; Intel Xeon 5600 series Bus Architecture : SATA Expansion : Comments : MD770LL/A,MD771LL/A,MD772LL/A;Do not mix ECC Registered DIMMs with ECC Unbuffered DIMMs.To choose RDIMM or ECC UDIMM depends on which CPU and memory type you have.Intel Xeon 3500 series processor could not support ECC Registered DIMMs,TS8GJMA343H and TS4GJMA343H.Please check which CPU and memory you have before you buy the memory. Embedded DRAM Modules Product Compare DDR3 ECC DIMMs (Standard) 4GB 1.5V 256Mx8 2Rx8 1333 Part No. TS4GJMA343N Compare DDR3 ECC DIMMs (Standard) 1Rx8 Compare DDR3 ECC DIMMs (Standard) 8GB 1.5V 512Mx8 2Rx8 1333 Part No. TS8GJMA343H