Logitech Z-5450 Digital 5.1 review: Logitech Z-5450 Digital 5.1 - CNET
Logitech Z-5400 / Z-5450 Satellite Speaker Pair - Left and Right (for 5.1) | eBay
Replacement Audio Cable Compatible with Logitech 5.1 Channel Computer Speakers Color Coded 3.5mm Minijack 3 Male to 3 Male 6.5ft,Compatible with logitech z-5500, z-5450, z-5400, z-5300, z-906, z-680, - Newegg.com
Remote Control For Logitech Z5500 Z680 Z5400 Z5450 Z-5500 Z-680 Z-5400 Digital Thx 5.1 Pc Multimedia Computer Speaker System - Remote Control - AliExpress