GB equals one billion bytes when referring to hard disk. Accessible capacity may vary. Recognizes up to 576 MB of addressable memory in models with the Mobile Pentium III processor. The V.90 modem can receive data at up to 56 Kbps from a K56Flex or V.90 compatible service provider and transmit data at up to 31.2 Kbps. Public networks currently limit maximum download speeds to about 53 Kbps.
Actual speeds depend on many factors and are often less than the maximum possible.
Video out port is not included on 3Ex, 4Ex, 7Ex, or 8Ex models. Variable read rate. Actual playback speed will vary and is often less than the maximum possible. Multimedia Some models include a DVD drive. DVD movie playback does not require complementary graphics hardware on ThinkPad 600X systems that have a DVD drive and Windows 98 installed.