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Feature Description
Internal
modem
56.6 Kbps
Audio v Internal microphone
v Internal speaker
v Software control volume
Infrared
transfer
IrDA 1.1
802.11b (only
for T23 series)
Mini PCI Type-IIIa IEEE 802.11b wireless LAN
card
PC Card One Type-III or two Type-II
AC adapter 72-watt type
Bay device T20
v 1.44 MB (3-mode), 3.5-inch diskette drive
v 10-24x CD-ROM drive
v 6x DVD-ROM drive
T21, T22, T23
v 1.44 MB (3-mode), 3.5-inch diskette drive
v 10-24x CD-ROM drive
v 8x DVD-ROM drive
v CD-RW drive
v DVD/CD-RW combo drive
Product overview
ThinkPad T20, T21, T22 and T23 series 43