Lenovo / IBM ThinkPad R51e

Available with 14.1 or 15 in. display, Lenovo / IBM ThinkPad R51e features 1.4 GHz Intel Celeron M processor with 1 MB L2 cache and 400 MHz FSB, or 1.7 GHz Intel Pentium M processor with 2 MB L2 cache and 533 MHz FSB. Standard 256 or 512 MB PC2-4200 memory is expandable to max of 2 GB. Additional features include 40 GB HDD, 4.0 hr battery life, 56 K V.90 modem and 10/100 Ethernet, ThinkVantage Rescue and Recovery 3.0, and 24x-24x-24x-8x max CD-RW/DVD-ROM or 8x max DVD-ROM.

New models of the ThinkPad R51e notebook include the following features:
Intel Celeron M processor 360 (1.4 GHz, 1 MB L2 cache, 400 MHz front-side bus (FSB)) or Intel Pentium M processor 740 (1.7 GHz, 2 MB L2 cache, 533 MHz FSB), 358.1-mm (14.1-in) or 381.0-mm (15-in) TFT display with 1024 x 768 resolution
ATI Radeon XPress 200M graphics
24x-24x-24x-8x max CD-RW/DVD-ROM or 8x max DVD-ROM
56 K V.90 modem (V.92-designed) and 10/100 Ethernet
UltraConnect antenna on selected models (requires Internet access, not included)
Standard ports: Two USB 2.0, external display, RJ-45, RJ-11, and parallel port
ThinkVantage Rescue and Recovery 3.0
One-year limited warranty
56 K V.90 modem (V.92-designed) and 10/100 Ethernet
Microsoft Windows XP Professional or Microsoft Windows XP Home and selected applications installed
Standard 256 or 512 MB PC2-4200 (533 MHz) memory expandable to a maximum of 2 GB
358.1-mm (14.1-in) or 381.0-mm (15-in) 1024 x 768 resolution display
Enhanced battery life: Up to 4.0 hours
Sleek design: 37-mm (1.5-in) slim
PC card slot (type II- and III-compatible)
40 GB/4200 rpm HDD
ThinkVantage Rescue and Recovery 3.0
Access program button; ThinkLight keyboard light; individual volume up, down, and mute buttons
Ergonomic keyboard with palm rest, TrackPoint pointing device with Press-to-Select, and Internet scroll bar
Standard ports: Two USB 2.0, external display, RJ-45, RJ-11, and parallel port 

All models of ThinkPad notebook systems are designed to meet the EPA ENERGY STAR10 requirements for using less than 15 watts of power in sleep mode when enabled by the power management software provided with the system.