I noticed a Advt (there were also other similar adds) on ebay which says:
2nd SATA HDD Hard Drive Caddy Adapter for IBM ThinkPad T4 Series T40 T41 T42 T43
Is it real or a illusion?.My T41 only has a pata interface for a IDE HD.How Do i find out about the dvd interface?.
My T41 mode is 2374-7FU
The Caddy will have a PATA connector for allowing it to plug into the UltraBay and then an internal SATA connector for adding a SATA HDD into the Caddy itself - it's pretty common stuff these days.
EDIT: The basic technical specs for your model of ThinkPad is listed below but also you can find out more information about your model series via http://www.thinkwiki.org/wiki/Category:T41
ThinkPad T41 (2374-7FU)
P M 1.6GHz, 512MB RAM, 40GB 5400rpm HDD, 14.1 XGA(1024x768) TFT LCD, 32MB ATI Radeon 7500, 16x10x24x/8x CD-RW/DVD, Intel 802.11b wireless(MPCI), Modem(CDC), 1Gb Ethernet(LOM), UltraNav, Secure Chip, 6 cell Li-Ion battery, WinXP Pro