With more USB ports, you are able to connect more devices.
Optoma EH501: 4
17. component ports
The more component ports a device has, the more devices can be simultaneously connected, such as video game consoles and set-top boxes.
BenQ MS504: 6
18. composite ports
The more composite ports a device has, the more devices can be simultaneously connected, such as video game consoles and set-top boxes.
NEC NC1200C: 4
19. has stereo speakers
Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
Epson PowerLite Home Cinema 705HD
15% have it
20. HDMI ports
More HDMI ports mean that you can simultaneously connect numerous devices, such as video game consoles and set-top boxes.
Panasonic PT-AE8000U: 3
21. zoom ratio
Projector zoom allows you to increase or decrease the size of the projected image without moving the projector. Bigger zoom ratio provides more flexibility. The most common zoom ratio among today's projectors is 1.2. With a 1.2 zoom ratio you can vary the image size by 20% by simply adjusting the zoom lens.
Epson PowerLite Pro Cinema 6030UB: 2.1:1
22. power consumption on standby
How much power the device consumes when shut down but still plugged in.
Panasonic PT-AE8000U: 0.08W
23. has a HDMI output
Devices with a HDMI or mini HDMI port can transfer high definition video and audio to a display.