Digital video recorder (DVR) cards allow a computer to connect and receive data from a DVR device. They have input ports for four or more video cameras, which send images directly from the site to the computer’s hard drive, network drive, or a user-specified storage. They also support other features such as motion detection, password protection, and timed recording.
Types of DVR Cards
Kinds of DVR Cards include the following:
Peripheral component interconnect (PCI) DVR cards
PCI DVR cards plug into a slot in the computer’s PCI rack, along with other expansion cards.
They are used for desktop computers and network servers.
Personal Computer Memory Card International Association (PCMCIA) DVR cards
PCMCIA DVR cards are smaller than PCI cards and fit into credit card-sized slots.
They are used in laptops and portable computers, and usually have fewer ports than PCI cards.
Choosing DVR Cards (Buying tips)
Number of ports: Choose a DVR card with enough ports to support multiple video feeds. Allow some extra ports for additional cameras if you plan to expand your surveillance. Make sure the ports match the connectors on your cameras. Driver support: Make sure the card drivers are compatible with your operating system. Look for drivers that detect and download updates automatically from the manufacturer’s website. Look for security features such as file encryption and password protection.