Hot attach & detach application cartridge internally and externally connectable to a computer case

A hot attach & detach application cartridge internally and externally connectable to a computer case, comprising

• an adapter module for mounting in a bay on the computer case to electrically connect to a motherboard in the computer case, and
• an application cartridge module for a peripheral apparatus to correspondingly mount therein and adapted to locate in said bay on the computer case having said adapter module mounted therein;
• wherein said adapter module and said application cartridge module are provided with at least two sets of corresponding male and female hot attach & detach connectors, respectively, to enable transmission of data between said application cartridge module and said motherboard in said computer case, and one of said at least two sets of male and female connectors providing faster transmission speed than other sets;
• wherein said at least two sets of male and female hot attach & detach connectors include at least two different sets selecting from USB, SATA 1394 and SAS male and female hot attach & detach connectors.