–limit-rate=amount
Limit the download speed to amount bytes per second. Amount may be
expressed in bytes, kilobytes with the k suffix, or megabytes with
the m suffix. For example, –limit-rate=20k will limit the
retrieval rate to 20KB/s. This kind of thing is useful when, for
whatever reason, you don’t want Wget to consume the entire evail-
able bandwidth.

amúgy ahogyan a linuxos tanítómesterem mondaná elõbb mindig man s csak utana a kerdes 🙂

man wget
onnan másoltam ki neked 🙂
milyen linuxon nézted ?