This determines how many cameras can be connected. Common options include 4, 8, or 16-channel cards, though some professional cards can be stacked to support up to 64 cameras.
Verify the interface (PCI vs. PCIe) and operating system support. Many older DVR cards only work with Windows XP or 7, so check for Windows 10/11 compatibility before purchasing. Card vs. Standalone DVR: Which is Better? buy cctv dvr card
Buying a CCTV DVR card (Digital Video Recorder card) is an effective way to turn a standard PC into a powerful surveillance hub. Unlike standalone DVR boxes, these PCI or PCIe cards allow you to leverage your existing computer’s processing power and storage for home or office security. This determines how many cameras can be connected
Ensure the card supports at least D1 (704 x 480) or higher for analog cameras. Some modern cards even support HD-SDI for true 1080P high-definition recording. PCIe) and operating system support
Look for "Real-Time" cards that offer 30 FPS per channel for smooth video. Some budget 16-channel cards might offer a total of 120 FPS, meaning each camera only records at 7.5 FPS, which can look choppy.
Choosing between a DVR card and a standalone unit depends on your technical comfort and existing hardware.