The strength of systems such as the Mac Pro 5,1 lies within their internal expansion potential. For a small number of users, however, 4 PCI-e ports just isn’t enough. This is where the CUBIX PCI-e Xpander steps in, converting one PCI-e x16 slot into four PCI-e x4 slots. This kind of PCI-e power will allow Mac Pro users to install up to 5 Nvidia GPUs or 6 AMD GPUs internally for unparalleled CUDA/OpenCL performance. If storage is your thing, how does a RAID comprising of four 2.5” SSDs or PCI-e flash blades sound?
It should be noted that some configurations of GPUs require certain OS X versions to run, don’t hesitate to call us on 020 3770 9660 or email us at if you have any questions.
To purchase a CUBIX Xpander Elite with custom GPUs, SSDs & more head over to our Configure Your Mac Pro page, alternatively call us on 020 3770 9660 or email
We aim to configure and ship most CUBIX PCI-E Xpanders within one working day but more complex systems may take up to 3 days. Please phone +44 (0)20 3770 9660 or email if you require an accurate delivery date estimate.
We ship to most locations in the EU free of charge, but for some specific locations there will be a charge of £120.00. For more information on the locations we deliver to please check our delivery page.