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What is EDID?

EDID stands for Extended Display Information Data. This is the data contained (usually in a small EEPROM) on each DVI display or HDMI sink. There may be as many as one EDID per DVI or HDMI input.

The source device checks the display’s DVI or HDMI port for the presence of an EDID prom and uses the information inside to optimize the output video and/or audio format. The EDID data structure can be for either VESA PC devices or for CEA-861B E-EDID (Enhanced EDID) devices. All sink devices compliant to the DVI or HDMI specification must implement EDID.

An EDID PROM is used only in sink devices. An EDID PROM sits on the DDC channel and uses a 2-wire I2C bus (part of the DDC specification from to communicate from the sink to the source. The EDID PROM contains information about the sink that it resides in. Its job is to communicate the preferred (or supported) video and audio formats and resolutions to the originating source. As an example, when a DVD player is powered on, it reads the EDID from an attached HDTV. The HDTV will have in its EDID contents that it is a Samsung 17” LCD panel that supports native resolution of 1280x1024 pixels, but can also support 480p, 720p and 1080i video modes. The EDID may also say that the TV is an HDMI device and has 2-speakers. The DVD player would compare this information with what it can put out of its HDMI port, then set itself to send 1080i with 2-channel stereo to the HDTV.

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2014-01-01 10:01:00
"HDWISE had the lowest price that I could find for the item that I wanted and with free shipping I simply could not pass it up. Being packaged well and arriving as… Read full review
By dublbublgum
2013-06-14 00:00:00
Looks like a quality product at a great rate,haven't hooked it up yet thanks
2013-04-25 20:45:00
worked nicely;am happy with this
2013-06-07 18:36:00
2013-11-07 02:26:00
Good seller. Thank you!
2013-10-23 20:42:00
Great product, good price, good comunication, strongly recommend!!! A++++++++
2013-09-04 13:48:00
Item as described, thanks!
2014-02-09 06:08:00
2013-08-19 16:10:00
Just what I needed, Thanks
2013-06-14 18:44:00
Great Thanks!...
2014-01-20 15:16:00
Item as described. Fast shipping.
2014-03-07 08:07:00
Thanks, great purchase.
2013-10-28 18:06:00
"Very pleased with price,service and speedy shipping. ordered 4 ZVPro280 qam modulators for my project in fabulous Las Vegas, arrived in 2 days with free shipping,… Read full review
By hobus
2013-05-15 00:00:00
fast del a +++++++++++ works great got 8 tvs up with fios or videos
2013-09-02 17:37:00
2013-06-12 01:40:00
prima vende e poi non spedisce in italia annullando la transazione
2013-06-06 23:10:00
2013-10-01 13:45:00
Excellent value, very happy, quick delivery
2013-11-26 06:33:00
ok perfect
2013-11-06 16:35:00
Item arrived as expected. Thank you!
2013-08-27 19:52:00
arrived as described and fairly quickly
2013-10-09 06:39:00
Perfect all the way!! Thanks a lot!!
2014-01-22 05:31:00
Good product!
2013-09-21 05:32:00
You guys have awesome products and selections!!!AAAAA+++++ SELLER
2014-03-05 07:56:00
2013-09-20 07:38:00
Brandnew item, really quick delivery, overall very satisfied
2013-12-19 11:00:00
tres bon vendeur ,rien a dire
2013-04-30 05:45:00
Great Switch Box! Works well with my tube amps! Fast Delivery too! Thanks!
2013-10-31 14:51:00
Great product, great service.
2013-07-31 14:23:00
Got it. Thanks!
2014-02-01 21:48:00
Great product great price super fast shipping no problems!!!
2013-12-05 21:07:00
For a long time I've wanted to buy Gefen Component Video Extender and I read a lot about it. Also I had to compare prices. I was pleasantly surprised, your prices and shipping really good and fast. Moreover it was found that this Video Extender is easy-to-use. Thanks guys!
By Campbell23
2013-05-01 00:00:00
Item as described and works perfectly. Fast delivery. Thanks!
2013-05-27 06:05:00
Great device! Thank you!! ++++++
2013-06-29 00:56:00
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