Bulk Isochronous Interrupt USB

●Bulk Transfers

Used to transfer large bursty data.

Error detection via CRC, with guarantee of delivery.

No guarantee of bandwidth or minimum latency.

Stream Pipe - Unidirectional

Full & high speed modes only.

●Isochronous Transfers provide

Guaranteed access to USB bandwidth.

Bounded latency.

Stream Pipe - Unidirectional

Error detection via CRC, but no retry or guarantee of delivery.

Full & high speed modes only.

No data toggling.

●Interrupt Transfers

Guaranteed Latency

Stream Pipe - Unidirectional

Error detection and next period retry.

출처 : 

http://www.beyondlogic.org/usbnutshell/usb4.shtml