Overview
The Dell 0TP004 front I/O USB audio panel board is a genuine Dell motherboard accessory designed to deliver front-panel connectivity in desktop systems. Featuring dual USB 2.0 ports and dual 3.5mm audio jacks (headphone and microphone), this panel board enables users to access peripherals and audio devices from the front of their computer without requiring rear panel connections. The board integrates with Dell’s standard internal cabling architecture and is built to Dell’s original specifications.
Key Features
- 2x USB 2.0 ports — front-mounted for convenient peripheral access
- 2x 3.5mm audio connectors — supports headphone and microphone input
- Integrated with Dell motherboard connector — standard pin layout compatible with OptiPlex series
- Genuine Dell component — original specifications and quality assurance
- PCB revision HU391 — verified board revision included
Technical Specifications
- Part Number (DP/N): 0TP004
- Alternate Part Number: TP004
- PCB Assembly (PWA): CN312
- PCB Board (PWB): HU391
- Board Revision: A01
- USB Ports: 2x USB 2.0 (front-mounted)
- Audio Connectors: 2x 3.5mm jack (headphone/microphone)
- Interface Type: Internal motherboard connector
- Manufacturer: Dell
- Connector Type: Motherboard header and panel-mounted ports
- Board Status: New, no box
Typical Applications
This Dell 0TP004 panel board is ideal for:
- Dell OptiPlex desktop system upgrades and replacements
- Front I/O connectivity restoration in towers requiring new panel assemblies
- System integrators maintaining Dell desktop fleet compatibility
- IT departments managing multi-unit OptiPlex deployments
- Desktop builders seeking OEM-specification front-panel components
Compatibility & Replacements
Compatible With
- Dell OptiPlex 330 desktop (tower/mini-tower configurations)
- Dell OptiPlex 360 desktop
- Dell OptiPlex 755 desktop (tower/mini-tower)
- Dell OptiPlex 760 desktop
- Dell OptiPlex 780 desktop
- Standard ATX motherboard front-panel headers with USB 2.0 and HD audio pinouts
Replaces / Drop-In Replacement For
- Dell TP004 — original part designation
- Dell CN-0TP004 — alternative labeling variant
- OEM Dell front I/O assemblies with matching PCB HU391
Works With
- Dell OptiPlex motherboards with standard ATX header layouts
- USB 2.0 host controller chipsets (standard on contemporary Intel/AMD platforms)
- HD Audio (Azalia) codec connections
- Internal cable management systems typical to OptiPlex tower assemblies






