For the average home studio owner, the M-Audio ProFire 2626 comes with all the accessories you would expect a consumer-grade recording interface to have. It includes the power cable, the FireWire 400 cable, the driver CD, a breakout cable for some more input options, and the unit itself. The ProFire series recording interfaces do not come with XLR cables (for plugging in microphones), ¼ plugs for guitars, nor a ¼ to 1/8 headphone adapter (although most high quality headphones should come with an adapter). You must purchase all of these separately. You won’t have to spend more than $50 on quality cables.