Can I power three transmitters from 1 12 V power supply.? Do you sell an adapter cable to daisychain three together?

No, these can't be daisy chained together. We do have 1x4 extender that you can use instead: https://amazon.com/Extender-Splitter-Orei-Multiple-Single/dp/B08KGWXJSG

can a splitter be used to project from one laptop to 2 projectors with these converters?

Simply NO with this extender only. If you purchase an HDMI splitter it will work as long as the splitter is HDCP 2.2 enabled. I would recommend a 1x2 Matrix Extender. It's more of what you are looking for.

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OREI 4K HDMI over Ethernet Extender Over CAT6/CAT7, with IR Upto 165 Feet - Local Loop Out - 4K@60Hz 1080P UltraHD AV Signal Distribution for Long Distance Setup (UHD-EX165H-K)

Product ID: 129480865

Details

Brand
OREI
Cable Type
Ethernet
Color
Black
Compatible Devices
All
Connector Type
HDMI

🎥4K@60Hz 18Gbps HDR UHD video clarity

📶165ft ultra-long 4K HDMI over CAT6/7

🎛️One-way IR pass-through remote control

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₩273643

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Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Elevate your AV game with flawless 4K reach and control!

PLUG PLAY COMPATIBILITY - Works flawlessly with TVs, projectors, gaming consoles, Blu-ray players, and more—ideal for home theaters, conference rooms, and digital signage.
CRYSTAL CLEAR HDR 12 BIT COLOR - Experience vibrant visuals with 18Gbps bandwidth, HDR support, HDMI 2.1, and 4:4:4 color sampling for ultra-sharp, true-to-life images.
EFFORTLESS REMOTE CONTROL ANYWHERE - Control your devices remotely with built-in IR pass-through—perfect for hidden AV racks or wall-mounted TVs without losing convenience.
SEAMLESS 165 FT 4 K UHD TRANSMISSION - Extend pristine 4K@60Hz video and audio up to 165 feet over a single CAT6/7 cable—ditch bulky HDMI cables for sleek setups.
LOCAL LOOP OUT FOR INSTANT MONITORING - Simultaneously view content locally while extending to remote displays—never miss a beat during presentations or entertainment.

The OREI UHD-EX165H-K is a professional-grade 4K HDMI over Ethernet extender that transmits uncompressed 4K@60Hz HDR video and immersive audio up to 165 feet via a single CAT6 or CAT7 cable. Featuring HDMI 2.1, HDCP 2.2, IR pass-through, and local loop out, it ensures seamless AV distribution for home theaters, conference rooms, and digital signage with broad device compatibility and easy setup.

Specifications

ASIN	B07RC4JTS4
Best Sellers Rank	#7 in Audio & Video Selector Boxes
Brand	OREI
Cable Type	Ethernet
Color	Black
Compatible Devices	All
Connector Type Used on Cable	HDMI
Customer Reviews	4.0 4.0 out of 5 stars (428)
Global Trade Identification Number	00854339007885
Item Weight	1.2 Pounds
Manufacturer	OREI
Manufacturer Contact Information	[email protected]
Mfr Part Number	UHD-EX165H-K
Model Number	UHD-EX165H-K
Number of Ports	1
Packer Contact Information	[email protected] , 99250 12671
Smart Home Compatibility	Smart Home Compatible
UPC	854339007885
Unit Count	1.0 Count
Warranty Description	1 Year Warranty

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