Linux supports a large variety of hardware devices such as mice, printers, scanners, PCMCIA and USB devices. However, most of these devices are not required while installing the system.
USB hardware generally works fine, only some USB keyboards may require additional configuration (see Section 3.6.4.4, “USB keyboards”).
This section contains information about peripherals specifically not supported by the installation system, even though they may be supported by Linux.
Again, see the Linux Hardware Compatibility HOWTO to determine whether your specific hardware is supported by Linux.
Note that the stock kernels do not support serial ports numbered greater than four (/dev/ttyS3). You'll have to either use the available ports, or else build a custom kernel (see ???).