Lenovo ThinkPad T420 (English) User Guide - Page 35

Specifications, Universal Serial Bus USB connectors - bluetooth

Page 35 highlights

• Speaker mute button • Microphone mute button Interface • External monitor connectors (VGA and DisplayPort) • Combo audio jack (stereo headphone or headset) • 2 Universal Serial Bus (USB) connectors • 1 Always On USB connector • 1 eSATA/Universal Serial Bus (USB) connector (on some models) • IEEE 1394 connector (on some models) • RJ11 Modem connector (on some models) • RJ45 Ethernet connector • Serial Ultrabay enhanced • ExpressCard slot • 4-in-1 digital media card reader (SD/SDHC/SDXC/MMC) • Smart card reader (on some models) • Docking connector Optical drive • Multi-Burner drive Wireless features • Integrated wireless LAN • Integrated Bluetooth (on some models) • Integrated wireless WAN (on some models) • Integrated WiMAX (on some models) Security features • Fingerprint reader (on some models) Specifications Size • Width: 340.5 mm (13.4 inch) • Depth: 233 mm (9.05 inch) • Height: 30.1 to 30.5 mm (1.18 to 1.20 inch) Heat output • 65 W (222 Btu/hr) maximum, 90 W (307 Btu/hr) maximum, 135 W (460 Btu/hr) maximum, or 170 W (580 Btu/hr) maximum (depending on the model) Power source (AC adapter) • Sine-wave input at 50 to 60 Hz • Input rating of the AC adapter: 100 to 240 V AC, 50 to 60 Hz Chapter 1. Product Overview 17

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Speaker mute button
Microphone mute button
Interface
External monitor connectors (VGA and DisplayPort)
Combo audio jack (stereo headphone or headset)
2 Universal Serial Bus (USB) connectors
1 Always On USB connector
1 eSATA/Universal Serial Bus (USB) connector (on some models)
IEEE 1394 connector (on some models)
RJ11 Modem connector (on some models)
RJ45 Ethernet connector
Serial Ultrabay enhanced
ExpressCard slot
4-in-1 digital media card reader (SD/SDHC/SDXC/MMC)
Smart card reader (on some models)
Docking connector
Optical drive
Multi-Burner drive
Wireless features
Integrated wireless LAN
Integrated
Bluetooth
(on some models)
Integrated wireless WAN (on some models)
Integrated WiMAX (on some models)
Security features
Fingerprint reader (on some models)
Specifications
Size
Width: 340.5 mm (13.4 inch)
Depth: 233 mm (9.05 inch)
Height: 30.1 to 30.5 mm (1.18 to 1.20 inch)
Heat output
65 W (222 Btu/hr) maximum, 90 W (307 Btu/hr) maximum, 135 W (460 Btu/hr) maximum, or 170 W
(580 Btu/hr) maximum (depending on the model)
Power source (AC adapter)
Sine-wave input at 50 to 60 Hz
Input rating of the AC adapter: 100 to 240 V AC, 50 to 60 Hz
Chapter 1
.
Product Overview
17