Transcend's DDR3 RDIMMs are available in 16 and 32 GB modules to boost Apple's 2013 Mac Pro machines to 64, 96, or 128 GB of memory, but its 1333 Mhz 32 GB modules run more slowly than the 16 GB 1866 Mhz memory modules it offers, along with those from OWC and Apple.
While the slower speed of the 32 GB modules may be an issue in certain situations, the possibility of bumping RAM to 128 GB will outweigh the speed loss for many power users.
"The new Mac Pro 2013 is advertised to support up to 64GB of memory, and we understand that pro users running applications that place high demands on RAM have a need to meet and most likely exceed this threshold," said Angus Wu, Director of Research and Development at Transcend. "For this reason, we have developed and fully tested higher density modules to give users the option of raising their Mac Pro system memory to the advertised 64GB right up to 128GB."
According to the company, the memory modules are easy to install, guaranteed to work with the Mac Pro, and come equipped with a Limited Lifetime Warranty. Pricing has yet to be announced.
Update 3/17 9:50 PT: Transcend has released pricing for its RAM upgrades, with the 64 GB kit priced at $980 and the 128 GB kit priced at $2480.