Burglars smashed a hole in the wall of a Berkshire industrial unit before escaping with computer networking equipment, police have revealed.
Thames Valley Police said the incident happened in Station Road, Theale, some time between Saturday 19 and Monday 21 February.
The equipment, which included hundreds of wireless routers and adapters, was worth about £80,000.
Most of the routers are manufactured by TP Link or Zyxel.
Pc Nathan Adby, of Thames Valley Police, said: "This has obviously had a serious impact on the business as severe damage has been caused to the building as well as a massive loss of stock.
"The offenders must have been at the premises for a substantial amount of time to be able to knock through the wall and steal such a large number of items without being disturbed.
"It is unknown how the offenders left the scene but it is more than likely that they used a van or similar to be able to remove all the items."