Lenovo ThinkPad T420si (English) User Guide - Page 21
Right-side view, Security keyhole, Serial Ultrabay Slim, Wireless radio switch - thinkpad t420s and t420
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Right-side view Figure 2. ThinkPad T420s/T420si right side view 1 Security keyhole 3 Wireless radio switch 2 Serial Ultrabay Slim 1 Security keyhole Your computer comes with a security keyhole. You can purchase a security cable and lock to fit this keyhole. 2 Serial Ultrabay Slim Your computer has a bay for Serial Ultrabay Slim devices. An optical drive is installed in the bay. Note: You can install only a 9.5-mm-thick Serial Ultrabay Slim device in the Serial Ultrabay Slim. You cannot install a Serial Ultrabay Enhanced device. 3 Wireless radio switch You can quickly turn the wireless features of your computer on and off using this switch. Chapter 1. Product overview 5
Right-side view
Figure 2. ThinkPad T420s/T420si right side view
1
Security keyhole
2
Serial Ultrabay Slim
3
Wireless radio switch
1
Security keyhole
Your computer comes with a security keyhole. You can purchase a security cable and lock to fit this keyhole.
2
Serial Ultrabay Slim
Your computer has a bay for Serial Ultrabay Slim devices. An optical drive is installed in the bay.
Note:
You can install only a 9.5-mm-thick Serial Ultrabay Slim device in the Serial Ultrabay Slim. You
cannot install a Serial Ultrabay Enhanced device.
3
Wireless radio switch
You can quickly turn the wireless features of your computer on and off using this switch.
Chapter 1
.
Product overview
5