PCIe card Dimension Half-Length 106.68 × 175.26 Specification Devaiation
Electrical Engineering Asked by Prashanth Kumar G N on December 22, 2021
As per the Wikipedia and other Sites, the dimension of the Half-Length PCIe card is 106.68 × 175.26, https://en.wikipedia.org/wiki/PCI_Express
But as per the specification, 
Kindly clarify. How the length of 175.26 has arrived for Half-Length PCIe card
One Answer
The PCIe electromechanical spec says for the half length form factor if the consumption of the power more than the rated power 10W, then the length must have greater than the Half length form factor. Nowadays most of the GPU, CPU, FPGA card built in Half, full length PCIe form factor and these are all power hungry devices hence most of the time power will be exceeding the rated power 10W, this might be the reason for mentioning in Wikipedia also.
Please find the attached snap shot of the PCI electromechanical specification.
Hope it helps.
Answered by Ananthesh Acharya on December 22, 2021
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