Amazon.com: YXQ 0.5W 8 Ohm Micro Internal Speaker Magnet Loudspeaker 30mm Dia Round Metal Shell with Wire DIY Slim for PC Laptop DVD/EVD(4Pcs) : Electronics
NEW 4-pin Internal Desktop PC BIOS Upgrade Speaker Motherboard CMOS/Case Buzzer | eBay
Jiahui Motherboard Diagnostic Internal Speaker with Buzzer for PC Black (BULK) in category Information Technology and Tablet/Computers/Diagnostic Cards at Easy Technology.
4 Pcs 10mm Diameter Built-in Speaker 1W 8 Ohm 1000Hz for PC Computer - Walmart.com