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Feature Description
Memory
(optional)
T20, T21, T22
v 64 MB, 128 MB, or 256 MB DIMM card
(maximum of 512 MB)
T23
v 64 MB, 128 MB, 256 MB, or 512 MB DIMM
card (maximum of 1024 MB)
CMOS RAM 242 bytes
Display T20
v 13.3-inch, 16M colors, XGA (1024×768
resolution) TFT color LCD
v 14.1-inch, 16M colors, XGA (1024×768
resolution) TFT color LCD
T21, T22, T23
v 13.3-inch, 16M colors, XGA (1024×768
resolution) TFT color LCD
v 14.1-inch, 16M colors, XGA (1024×768
resolution) TFT color LCD
v 14.1-inch, 16M colors, SXGA+ (1400×1050
resolution) TFT color LCD
Hard-disk drive T20
v 6.0 GB, 2.5-inch, IDE interface
v 12.0 GB, 2.5-inch, IDE interface
v 18.0 GB, 2.5-inch, IDE interface
v 20.0 GB, 2.5-inch, IDE interface
T21, T22
v 10.0 GB, 2.5-inch, IDE interface
v 20.0 GB, 2.5-inch, IDE interface
v 32.0 GB, 2.5-inch, IDE interface
T23
v 15.0 GB, 2.5-inch, IDE interface
v 20.0 GB, 2.5-inch, IDE interface
v 30.0 GB, 2.5-inch, IDE interface
v 40.0 GB, 2.5-inch, IDE interface
v 48.0 GB, 2.5-inch, IDE interface
v 60.0 GB, 2.5-inch, IDE interface
I/O port v External monitor
v Line-in
v Headphone
v Microphone
v Mouse or keyboard
v Parallel or diskette drive
v Port replicator connector
v Serial
v One universal serial bus (USB) connector for
T20, T21, and T22 series
v Two USB connectors for T23
v RJ11
v RJ45 (covered)
v TV-out
(continued)
Product overview
42 ThinkPad T20, T21, T22, T23 (MT 2647/2648)