.
Most DVR's in the market can record video at 320X480 @15 FPS, one other model can do as much as 640X480 @ 15 to 18 FPS. Some claim that you can upgrade the firmware and get better resolution...(that's simply not possible as resolution can not increase without degradation of the image, it's like blowing a balloon with writing on it, sure you can make it bigger but past some point the image will degrade).
Resolution simply put is the SIZE of the image, 640 pixels horizontal by 480 pixels vertical, which is perfect as these just happen to be your PC's VGA standards.
Features
Includes

Thank You For Choosing Our Online Spy Store For Your Spy Equipment Needs.
Our friendly and knowledgeable staff are ready to assist you in selecting the right security / spy equipment to handle any situation that you may have. Simply tell us what you are trying to accomplish and we will point you in the right direction. It's that easy! 888-234-4579
100% SATISFACTION GUARANTEE! (please see our store policies page)
Ongoing customer support by telephone or email. support@eyespysupply.com
We are located in the Dallas / Fort Worth (DFW) Metroplex. (Online sales only)8553 N. Beach ST , Keller, TX