Acer 650 Wireless Module 802.11a/b optional device, Four-in-One Card Reader, DVD-ROM Interface

Wireless Module 802.11a/b (optional device)

Item	Specification
Chipset	Atheros
Data throughput	11M~54M bps
Protocol	802.11 a+b
Interface	Mini_PCI type III

Four-in-One Card Reader

Item	Specification
Chipset	ST7265
Data throughput	USB 1.1
Protocol	SMC, MS, MMC, and SD

Hard Disk Drive Interface

Item	Specification
Vendor &	IBM 20G	IBM 30G		IBM 40G	Toshiba	Toshiba		Toshiba	Hitachi	Hitachi	Hitachi
Model Name					20G	30G		40G	20G	30G	40G
					(MK2018	(MK3018		(MK4018	DK23DA	DK23DA	DK23DA
					)	)	)		-20F	-30F	-40F
Capacity (MB)	20000	30000		40000	20000	30000	40000		20000	30000	40000
Bytes per	512	512		512	512	512	512		512	512	512
sector
Data heads	2	3		4	2	3	4		2	3	4
Drive Format
Disks	1	2		2	1	2	2		1	2	2
Spindle speed	4200	4200		4200	4200	4200	4200		4200	4200	4200
(RPM)	RPM	RPM		RPM	RPM	RPM		RPM	RPM	RPM	RPM
Performance Specifications
Buffer size	2048KB	2048KB		2048KB	2048KB	2048KB		2048KB	2048KB	2048KB	2048KB
Interface	ATA-5	ATA-5		ATA-5	ATA-5	ATA-5		ATA-5	ATA-5	ATA-5	ATA-5
Max. media	216	287		245	287	235	290		366	366	296
transfer rate
(disk-buffer,
Mbytes/s)
Data transfer	100 MB/	100 MB/		100 MB/	100 MB/	100 MB/		100 MB/	100 MB/	100 MB/	100 MB/
rate	Sec.	Sec.		Sec.	Sec.	Sec.		Sec.	Sec.	Sec.	Sec.
(host~buffer,	Ultra	Ultra		Ultra	Ultra	Ultra		Ultra	Ultra	Ultra	Ultra
Mbytes/s)	DMA	DMA		DMA	DMA	DMA		DMA	DMA	DMA	DMA
	mode-5	mode-5		mode-5	mode-5	mode-5		mode-5	mode-5	mode-5	mode-5
DC Power Requirements
Voltage	5V(DC)	5V(DC)		5V(DC)	5V(DC)	5V(DC)		5V(DC)	5V(DC)	5V(DC)	5V(DC)
tolerance	+/- 5%	+/- 5%		+/- 5%	+/- 5%	+/- 5%	+/- 5%		+/- 5%	+/- 5%	+/- 5%
DVD-ROM Interface
Item						Specification
Vendor & model name			Toshiba SD-C2502
Performance Specification			With CD Diskette					With DVD Diskette
Transfer rate (KB/sec)			Sustained:					Sustained:
			Max 3.6Mbytes/sec					Max 10.8Mbytes/sec
Data Buffer Capacity			128 KBytes

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