Socket 563 is a microPGA CPU socket used for low-power (16 W and 25 W TDP) Athlon XP-M processors ("Thoroughbred" & "Barton"; Models 8 & 10).

[1][2] Socket 563 was also reportedly used for the "Appaloosa" Duron processors, which were never officially released but did see some very limited circulation.

[3][4][5][6] This socket is usually found in laptops and requires a low-power mobile processor in a special 563-pin μPGA package which is different from the Socket A (462 pin) package used for other Athlon processors.

Motherboards equipped with Socket 563 include the PCChips M863G Ver3[8] (actually manufactured by ECS) and the ECS K7SOM.

[9] Both motherboards came bundled with socket 563 processors as well as a heatsink.