Feature Description
I/O port v External monitor connector

v Stereo headphone jack

v Monaural microphone jack

v Infrared port

v Docking connector

v RJ11 connector

v RJ45 connector

v Universal serial bus (USB) connector × 3 (compatible with

USB 1.1 and 2.0)
Internal modem v 56.6 Kbps
Audio v Built-in stereo speakers

v Software control volume

Infrared transfer v IrDA 1.1
Ethernet (on the system
board)

v Gigabit Ethernet

PCI Express Mini Card v ThinkPad 11a/b/g Wireless LAN Mini PCI Express
Adapter

v Intel PRO Wireless 3945ABG Mini-PCI Express Adapter

v ThinkPad 11a/b/g/n Wireless LAN Mini-PCI Express

Adapter

v Sierra Wireless EV-DO Wireless WAN Mini PCI Express

Adapter

v Sierra Wireless MC8755 PCI Express MiniCard

v Integrated Cingular HSDPA 3G Wireless Broadband

Network Adapter
PC Card /ExpressCard slots v ExpressCard (34 module, 54 module) for upper slot

v PC Card (Type-II) for lower slot

Bluetooth wireless (some

models)

v ThinkPad Bluetooth with Enhanced Data Rate (BDC-2)

Modem v ThinkPad Modem (MDC-1.5, 56 kbps HDA)
Touch pad v UltraNav®
ThinkLight® Yes
Battery v Li-ion battery (6 cells) 5.2 Ah

v Li-ion battery (9 cells) 7.8 Ah

v Ultrabay Slim Li Polymer battery (3 cells) (option)

AC adapter v 65-watt type

v 90-watt type

Preinstalled operating
system

v Windows XP Professional

v Windows XP Home Edition

v Windows Vista® Home Premium (32 bit)

v Windows Vista Business (32 bit)

v Windows Vista Ultimate (32 bit)

Product overview
40 MT 1951, 1952, 1953, 1954, 1955, 1956, 2007, 2008, 2009, 2613, 2623, and 2637