Acer Extensa 4220 TravelMate 4320/4720 and Extensa 4220/4620 Service Guide - Page 12

K Easy-launch buttons: Acer Empowering Key, Internet, email, user-progammable K Productivity keys: Lock, Presentation, Sync K Front-access communication switches: WLAN and Bluetooth® Audio K Two built-in Acer 3DSonic stereo speakers K Intel® High Definition Audio support K Built-in microphone K MS-Sound compatible Communication K Acer Video Conference featuring: j Integrated Acer CrystalEye webcam supporting enhanced Acer PrimaLite™ technology j Optional Acer Bluetooth® VoIP phone K WLAN: Intel® Wireless WiFi Link 4965AGN (dual-band quad-mode 802.11a/b/g/Draft-N) network connection, supporting Acer SignalUp™ with InviLink™ Nplify™ wireless technology, or Intel® PRO/ Wireless 3945ABG (dual-band tri-mode 802.11a/b/g) Wi-Fi CERTIFIED® network connection, supporting Acer SignalUp™ wireless technology K WPAN: Bluetooth® 2.0+EDR (Enhanced Data Rate) K LAN: Gigabit Ethernet; Wake-on-LAN ready K Modem: 56K ITU V.92 with PTT approval; Wake-on-Ring ready I/O Interface K PC Card slot (one Type II) K 5-in-1 card reader (MS/MS PRO/MMC/SD/xD) K Four USB 2.0 ports K IEEE 1394 port K Fast Infrared (FIR) port K External display (VGA) port K S-video/TV-out (NTSC/PAL) port K Headphones/speaker/line-out jack K Line-in jack K Microphone jack K Ethernet (RJ-45) port K Modem (RJ-11) port K DC-in jack for AC adaptor Power Subsystem K ACPI 3.0 CPU power management standard: supports Standby and Hibernation power-saving modes K 44 W 4000 mAh Li-ion battery pack (6-cell) K 3-pin 65 W AC adaptor 2 Chapter 1