IBM MT 8749, MT 9448, MT 8747, MT 9440, MT 9443, MT 9442, MT 9441 manual Cmos RAM

		Product overview
Feature	Description
Optional memory	v	256-MB DDR2-667 SDRAM SO-DIMM (PC2-5300) card × 1
	v	512-MB DDR2-667 SDRAM SO-DIMM (PC2-5300) card × 1
	v	1-GB DDR2-667 SDRAM SO-DIMM (PC2-5300) card × 1
	v 2-GB DDR2-533 SDRAM SO-DIMM (PC2-4200) card × 1
		(maximum of 2048 MB)
CMOS RAM	v	256 bytes
Hard disk drive	v	40 GB, 5400 rpm, 9.5 mm high, SATA interface
	v 60 GB, 5400 rpm, 9.5 mm high, SATA interface
	v 80 GB, 5400 rpm, 9.5 mm high, SATA interface
	v 100 GB, 5400 rpm, 9.5 mm high, SATA interface
	v 120 GB, 5400 rpm, 9.5 mm high, SATA interface
	v 60 GB, 7200 rpm, 9.5 mm high, SATA interface
	v 100 GB, 7200 rpm, 9.5 mm high, SATA interface
	Supported hard disk drives depend on the model.
Ultrabay slim device	v	DVD-ROM drive, 9.5 mm high
(standard)	v	DVD/CD-RW combo drive, 9.5 mm high
	v	DVD-RAM/RW drive, 9.5 mm high
Fingerprint reader	Some models
I/O port	v	External-monitor connector
	v Digital Media Reader (Flash memory slot)
	v	Stereo headphone jack
	v	Microphone jack
	v Video-out connector (S-Video)
	v 3 Universal Serial Bus (USB) connectors
	v	IEEE 1394 connector
	v	Infrared port
	v	RJ11 telephone connector
	v	RJ45 Ethernet connector
	v	Ultrabay™
	v	Docking connector
	v Integrated wireless LAN feature (on some models)
	v Integrated wireless WAN feature (on some models)
	v Integrated Bluetooth feature (on some models)
Audio and video	v	Built-in stereo speakers
	v	Software control volume
	v Built-in monaural microphone (on some models)
	v	Camera (on some models)
	v Built-in array microphones (on some models in
		combination with the camera)
Infrared transfer	v	IrDA 1.1
Ethernet (on the system	v	Gigabit Ethernet
board)

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ThinkPad Z61t 35