Oct 30 (Reuters) - Ecommerce firm eBay ( EBAY ) forecast

fourth-quarter revenue below Wall Street estimates on Wednesday,

signaling weak demand for products in its key categories like

collector's items and refurbished goods.

The company expects revenue in the range of $2.53 billion to

$2.59 billion for the quarter. Analysts on average were

expecting $2.65 billion, according to data compiled by LSEG.