Lenovo ThinkPad i Series 1157 ThinkPad 570 User's Reference - Page 6

Lithium-ion battery pack The large-capacity lithium-ion battery pack extends the operating time of your computer, further enhancing its portability. Built-in modem The integrated modem enables you to send or receive data, faxes, and voice over a telephone line. Supporting V.90 protocol and data rates of up to 56 Kbps, the modem makes communication easy and efficient when you are away from your office. To use the ThinkPad modem function Online User's Guide. PC Card support Your computer provides two PC Card slots that accept a 16-bit PC Card, CardBus Card, or Zoomed Video Card. To install a PC Card "Using a PC Card" on page 81. Capability for further expansion, flexibility, and communication You can further enhance your ThinkPad 570's functionality by attaching it to the ThinkPad 570 UltraBase and a port replicator (ThinkPad 560 Port Replicator or ThinkPad Port Replicator with Advanced EtherJet Feature). The ThinkPad 570 UltraBase allows you easily add such options as a second battery, CD-ROM drive, DVD-ROM drive, or many other options. The port replicator provides cable management and easy Ethernet connectivity. With these options your computer can be both portable when you are mobile and emulate a powerful desktop computer when you are in your office or home. For more information "Extending the features of your computer with the ThinkPad 570 UltraBase and port replicators" on page 84. vi IBM ThinkPad 570 User's Reference