Toshiba Satellite L20 Series Maintenance Manual page 20

Chatper 1 Hardware Overview
θ Optical devices
A DVD-ROM & CD-R/RW drive or DVD Super Multi drive is equipped.
θ Battery
The RTC battery is equipped inside the computer.
The main battery is a detachable lithium ion battery (4,300mAh:Li-Ion, 8cell).
θ USB (Universal Serial Bus)
Three USB ports are provided. The ports comply with the USB2.0 standard, which
enables data transfer speeds 40 times faster than USB1.1 standard. USB1.1 is also
supported.
θ Sound system
An internal stereo speaker, external monaural microphone connector, stereo
headphone connector is also equipped.
θ Wireless LAN (Mini PCI slot) (BTO)
The wireless LAN is equipped on the mini PCI slot.
θ LAN/MODEM
Connectors for LAN and Modem are separately mounted.
4 Satellite L20 Maintenance Manual (960-Q01)