MPOCASINO XM (requires an eXternal electro-mechanical adapter) - Technically the same as EM, but such adapter usually consists of 2 parts: a pseudo-card with pin routing and physical enclosure size that perfectly match the target slot and a break-out box (a card reader) that holds a real card. X (requires an eXternal adapter) - Technically the same as E, but such adapter usually consists of 2 parts: a pseudo-card with pin routing and physical enclosure size that perfectly match the target slot and a break-out box (a card reader) that holds a real card. There are many USB-connected "n-in-1" memory card readers, for example Belkin's "Hi-Speed USB 2.0 15-in-1 Media Reader & Writer". USB flash drives allow reading, writing, and erasing of data, with some allowing 1 million write/erase cycles in each cell of memory: if there were 100 uses per day, 1 million cycles could span 10,000 days or over 27 years.|USS Enterprise (CV-6)