
C301 Network Cable VGA Audio Extender
Transmits VGA and 3.5mm audio signals over a distance of 300 meters using network cable.
Product Introduction
Product Application

Product Specifications
- Pure external hardware design, plug-and-play, no software or driver installation required.
- Connect the transmitter and receiver using a Cat.5e UTP or higher network cable to extend VGA + 3.5mm audio signals up to 300 meters.
※Transmission distance depends on network cable quality; it is recommended to use anti-interference cables (twisted pair solid core with aluminum foil shielding) for optimal performance. - Maximum Resolution / Transmission Distance: 2048×1536@60Hz / 300 meters.
- The transmitter provides VGA + 3.5mm audio output for local monitoring.
- The receiver is equipped with image gain, focus adjustment, and RGB skew adjustment knobs to correct signal distortion or attenuation caused by distance.
- Magnetic base design with mounting brackets included for easy installation in various settings.
- Dual-color LED indicators for easy system status identification.
- Net Weight: [Transmitter] 307.5 g (±1), [Receiver] 312.5 g (±1).
- Material: Metal casing, metal/plastic components.
- Origin: Taiwan.
- Dimensions: 113 × 62 × 29 mm
Model |
C301T | C301R | |
Input Interface | Video | Integrated Type HDB-15 (VGA) Male |
N/A |
Audio | |||
Output Interface | Video | VGA Female | VGA Female |
Audio | 3.5mm Audio Female | 3.5mm Audio Female | |
Transmission Port | RJ-45 Female | RJ-45 Female | |
Image Adjustment Knob | N/A | RGB Skew Adjustment x 1, Image Gain x 1, Focus Adjustment x 1 |
Product List

C301T Transmitter Unit x1

C301R Receiver Unit x1

15-Pin 2-in-1 Cable x1

DC 5V Power Adapter x2

VGA Female-to-Female Adapter x1 (*Note 1)

Mounting Bracket x2

Product warranty card x1
Note 1: VGA Female-to-Female Adapter is pre-installed on the transmitter unit.
※The product specifications and accessories mentioned in the user manual are for reference only. Any changes will not be notified in advance. UPMOST reserves the right to modify product design, accessories, and drivers.
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