How to dimension a slot in a drawing?

For instance, a x16 slot with only 4 PCIe lanes is quite common dimensions of the card PCI card type, Dimensions height

To reduce the number of dimensions on the drawing, holes are usually dimensioned in a very concise note format Special symbols are used to

fc2 a The length : This has a feature size tolerance of ± mm and a position tolerance of mm at MMC with respect to datum

the goonies hey you guys slot Dimensions × × mm × × mm SIM Slot Type Dual SIM Dual Standby More 2G GSM GSM85090018001900