A card edge cable connector assembly includes a cable connector having a cable connector housing having a top, a bottom, a front, and a rear. The cable connector has a mating end and a cable end. The cable connector housing holds signal contacts and ground contacts. Cables are electrically connected to corresponding signal and ground contacts and extend from the cable end. The card edge cable connector assembly includes cable connector holder extending from the cable connector having a support wall with a support surface configured to engage a planar surface of a circuit card proximate to an edge slot at an edge of the circuit card to support the cable connector on the circuit card such that the cable connector and the cables are located in the edge slot of the circuit card.