Which of the PCI right angle extenders will fit in a 1U / 2U chassis?
The PCITX4-1, PCITX4-2, PCITX8-1 and PCITX8-2 are designed to fit in the 2U chassis. All the others, except the PCITX4-8 and the PCITX8-7, are the shorter versions that can also be used in the 2U chassis. The PCITX4-5, PCITX4-6, PCITX8-5 and the PCITX8-6 are currently the shortest right angle riser cards and they are designed for the 1U chassis. Please see the following PCITX4 and PCITX8 comparison chart.