Model:
Lenovo ThinkPad T420
Generation:
2nd-generation Intel Core (Sandy Bridge)
CPU options:
Core i5-2410M
2 cores / 4 threads, 2.50 GHz, Turbo up to 3.20 GHz, 3 MB cache
RAM:
DDR3-1333, 2 SO-DIMM slots, officially up to 8 GB
Display:
14.0"
Resolution options:
1366×768 HD or 1600×900 HD+
Graphics:
Intel HD Graphics 3000; some configurations have NVIDIA NVS 4200M
Storage:
2.5" SATA HDD/SSD; originally commonly 320/500 GB HDD
Optical drive:
DVD burner / Ultrabay
Wi-Fi:
Intel wireless options such as Centrino/Intel 6205
Ethernet:
Gigabit Ethernet
USB:
USB 2.0 ports + powered USB/eSATA depending on configuration
Other:
VGA, Mini DisplayPort, ExpressCard, SD card reader, audio
Camera:
Optional/typically 720p
Battery:
6-cell