DATARAM 128GB (4 X 32GB) DDR3 PC3-10600 1333MHz ECC Memory Ram Upgrade Kit for The 2013 Mac Pro 6,1 at Amazon.com
CPU / Ram Tray Riser Card Board 820-5494 -Mac Pro 2013 6,1 A1481 820-5 - Part Haven
192GB Memory Upgrade for 2019 Apple Mac Pro (6 x 32GB)
A-Tech 64GB Kit (4x16GB) RAM for Apple Mac Pro Late 2013 | DDR3 1866MHz PC3-14900R ECC RDIMM 2Rx4 1.5V 240-Pin Registered DIMM Memory Upgrade at Amazon.com
Samsung 128GB 4X32GB DDR3 ECC 1600 Memory RAM for 2013 Mac Pro 6,1 Upg – dqupgrade
Mac Pro 6,1 RAM + SSD Upgrade - YouTube
Memory RAM | 8GB - Apple Mac Pro MacPro6,1 (6-Core) - - 1866MHz, ECC, Unbuffered, 1,5V, 2 Rank