Connect Cyclone V SX SoC Development Board to PC using PICe

Hello all.

Is it possible to connect Cyclone V SX SoC Development Board to PC using PCIe? The board have female PCIe connector, and Reference Manual tell about it:

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To use the PCI Express interface with the Cyclone V SoC device in end-point mode,

for example, with a cable plugged into a PC, you must remove resistors R253, R254,

R249, and R251, and install R250 and R252. This resistor change will route the clock

from the PC directly into the Cyclone V SoC device. You can use a PCI Express gen1x4

cable from Samtec (HDR-172378-02-PCIEC) for this connection.

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But I can't find that cable anywhere. Does such cables really exists?