The CT-SR303-4 from Cantek is a versatile 4 channel HD-SDI digital video recorder that provides high-definition video recording capabilities without the need for an HDD. It is designed for efficient surveillance, offering robust input options and impressive video quality.
CCTV Resolution Comparison

Features
- 4 HD-SDI interfaces input: Allows for high-definition video input from up to four cameras, ensuring clear and detailed surveillance footage.
- 4-ch video & 4-ch audio input: Provides synchronized audio and video recording capabilities, enhancing the overall surveillance experience.
- 2 SATA interfaces: Offers flexibility for adding storage options, making it easy to expand your recording capacity as needed.
- 1080P fps/ch: Delivers high-definition video at 1080P resolution per channel, ensuring exceptional clarity and detail in recorded footage.
- 1U case: Compact design allows for easy installation in various environments, saving space while maintaining functionality.
- Alarm I/O: 4/1 optional: Enables integration with alarm systems for enhanced security measures, providing alerts when necessary.
Cantek CT-SR303-4 Detailed Specifications
| Model | CT-SR303-4 |
| Video Channels | 4 |
| Audio Channels | 4 |
| HD-SDI Inputs | 4 |
| SATA Interfaces | 2 |
| Resolution | 1080P |
| Form Factor | 1U Case |
| Alarm I/O | 4/1 optional |



















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