Dell 0TP004 I/O USB audio panel with integrated cable assembly for Optiplex 330 desktop systems. This internal front-panel module provides dual USB 2.0 ports and integrated audio connectivity, enabling convenient access to USB peripherals and headphone/microphone jacks without routing cables through the chassis rear. Form factor fits standard 3.5-inch drive bay mounting or dedicated panel slot on Optiplex 330 models. Cable terminates to motherboard USB and HD audio headers, compatible with Intel ICH-series chipsets and Realtek audio codecs found in Optiplex 330 generation systems. Typical deployment includes office workstations, call centers, and knowledge-worker environments requiring front-accessible audio and USB connections. Part number 0TP004 is OEM refurbished and tested for full functionality. Available via quote.