This section summarizes exceptions and additional requirements for mobile PCs and provides requirements for docking stations and port replicators.
Note PC 97 Hardware Design Guidelines do not apply for so-called personal digital assistants (PDAs) or other sub-PC form factor designs.
The following is a specific requirement for mobile PCs.
48. CardBus for high-speed expansion capabilities on mobile PCs
| Basic PC 97 | Workstation PC 97 | Entertainment PC 97 |
| Required | Required | Required |
One CardBus slot is required; two slots are recommended. For more information about the PC 97 requirements for implementing CardBus, see the "PC Card" chapter in Part 3 of this guide.