Acer 4720G, 4320, 4720Z manual DVD-Dual Interface, Audio Interface, USB Port

DVD-Dual Interface

Item		Specification
Vendor & model name	LITEON SOSW-833S
	PIONEER DVR-K16RA
Performance Specification	With CD Diskette		With DVD Diskette
Transfer rate (KB/sec)	Sustained:		Sustained:
	Max 3.6Mbytes/sec		Max 10.8Mbytes/sec
Buffer Memory	2MB
Interface	Enhanced IDE(ATAPI) compatible
Applicable disc format	Support disc formats
	1.	Reads data in each CD-ROM, CD-ROM XA, CD-1, Video CD, CD-Extra and
	CD-Text
	2.	Reads data in Photo CD (single and Multi-session)
	3.	Reads standard CD-DA
	4.	Reads and writes CD-R discs
	5.	Reads and writes CD-RW discs
	6.	Reads and writes in each DVD+R/RW (Ver. 1.1)
	7.	Reads data in each DVD-ROM and DVD-R (Ver. 2.0 for Authoring)
	8.	Reads and writes in each DVD-R (Ver. 2.0 for general), DVD-RW and
	DVD+R/RW (Ver1.1)
Loading mechanism	Load: Manual
	Release: (a) Electrical Release (Release Button)
		(b) Release by ATAPI command
		(c) Emergency Release
Power Requirement
Input Voltage	5 V +/- 5 % (Operating)

Audio Interface

Item	Specification
Audio Controller	Realtek ALC268
Audio onboard or optional	Onboard
Mono or Stereo	Stereo
Resolution	18 bit stereo full duplex
Compatibility	HD audio Interface; S/PDIF output for PCM or AC-3 content
Sampling rate	44.1k/48k/96k/192kHZ sample rate
Internal microphone	Yes
Internal speaker / Quantity	Yes/2 (1.5W speakers)
Supports PnP DMA channel	DMA channel 0
	DMA channel 1
Supports PnP IRQ	IRQ10, IRQ11

USB Port

Item	Specification
Chipset	Integrated with ICH8M chipset
USB Compliancy Level	2.0
OHCI	USB 1.1 and USB 2.0 Host controller
Number of USB ports	4
Location	Two on the left side; two on the right side
Serial port function control	Enable/Disable by BIOS Setup

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