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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 www.vesa.org) 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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TESTIMONIALS
ok perfect
2013-11-06 16:35:00
Great product, great service.
digitalgoo
2013-07-31 14:23:00
Great product, good price, good comunication, strongly recommend!!! A++++++++
rfcalvilho
2013-09-04 13:48:00
items don't arrive-track number of other costumer.very slow e-mail answer
2014-01-29 12:05:00
Worked Great
2014-01-01 10:01:00
Awesome!!!
saknarong
2013-09-20 07:38:00
Good product!
vitelinc
2013-09-21 05:32:00
Great device! Thank you!! ++++++
sergeyklenov
2013-06-29 00:56:00
Item arrived as expected. Thank you!
orenwolf
2013-08-27 19:52:00
Excellent value, very happy, quick delivery
2013-11-26 06:33:00
Brandnew item, really quick delivery, overall very satisfied
2013-12-19 11:00:00
Item as described. Fast shipping.
2014-03-07 08:07:00
Thanks, great purchase.
2013-10-28 18:06:00
You guys have awesome products and selections!!!AAAAA+++++ SELLER
2014-03-05 07:56:00
Good seller. Thank you!
2013-10-23 20:42:00
1x4 COMPOSITE VIDEO DISTRIBUTION AMPLIFIER - Thank You
adamlimo
2013-08-19 16:10:00
fast del a +++++++++++ works great got 8 tvs up with fios or videos
richietg
2013-09-02 17:37:00
Great product great price super fast shipping no problems!!!
2013-12-05 21:07:00
Great Switch Box! Works well with my tube amps! Fast Delivery too! Thanks!
2013-10-31 14:51:00
"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
Great Thanks!...
2014-01-20 15:16:00
worked nicely;am happy with this
baronvonbrian
2013-06-07 18:36:00
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 scheduled, I am quite happy as a first-time customer.
By dublbublgum
2013-06-14 00:00:00
Got it. Thanks!
2014-02-01 21:48:00
Perfect all the way!! Thanks a lot!!
2014-01-22 05:31:00
prima vende e poi non spedisce in italia annullando la transazione
deltamania
2013-06-06 23:10:00
"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
Item as described, thanks!
2014-02-09 06:08:00
3701 RCA,1x4 COMPOSITE VIDEO DISTRIBUTION - Good Seller
adamlimo
2013-10-01 13:45:00
bonne
819_viens
2013-06-12 01:40:00
recomendable
2013-11-07 02:26:00
arrived as described and fairly quickly
ponkowy
2013-10-09 06:39:00
Just what I needed, Thanks
cbro3454
2013-06-14 18:44:00
Item as described and works perfectly. Fast delivery. Thanks!
zarath111
2013-05-27 06:05:00
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, right in time! Will use them again for upcomming projects. Thanks a lot from Hobus Visual!
By hobus
2013-05-15 00:00:00
 
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