LAST EDITED ON Feb-05-01 AT 04:26 PM (GMT)
PCMCIA cards come in three form-factors:
PCMCIA (original) 3.3 millimeters thick
PCMCIA II 5.0 mm thick
PCMCIA III 10.5 mm thick
All three have the same length and width
Types II and III come in 16-bit and 32-bit versions. The 32-bit versions are known as a CardBus PC Cards. 16-bit versions are PC Card-16 PC Cards. CardBus cards can only be used in notebooks equipped with CardBus slots.
http://www.kingston.com/networking/adapters/cb4tx.asp: “PC Card-16 cards use an 8- or 16-bit interface that operates at ISA bus speeds (8 MHz) using an ISA-like asynchronous protocol. In contrast, CardBus provides a 32-bit multiplexed address/data path, which operates at PCI local-bus speeds of up to 33 MHz, yielding a peak bandwidth of 132MB/sec. CardBus accomplishes this by adopting the synchronous burst-transfer orientation of PCI, as well as a bus protocol, which is essentially identical to that of PCI.”
The Mitac 5023 (http://www.mitac.com.hk/notebook/) has either two type II or one type III PCMCIA slots. There are many variations of thinkpads… They have one type III or two type I/II. The Dell/3Com NIC (http://support.3com.com/infodeli/tools/nic/3ccfe575b/docs/ug/index.htm) is a type II 32-bit Card Bus card.
I suspect you need the older 16-bit PC Cards, such as the 3COM 3CCFE574BT (http://www.3com.com/mobile/pccards/3cxfe574btsp.html).
See http://www.pc-card.com/pccard.htm, http://www.rdrop.com/~cary/html/pc_card_faq.html, and http://www.xircom.com/cda/page/1,1298,0-0-1_20-403,00.html#q1 for more info. Larry