Can i use this to convert a 720p hdmi to 1080i sdi?

Yes you can. Mini Converter UpDownCross HD has the ability to convert any SD or HD video format with up, down, or cross conversion via SDI and HDMI. See page 83 on Blackmagic Converters Manual. https://www.blackmagicdesign.com/manuals/Converters/Blackmagic_Converters_Manual.pdf

The output matches the monitor; which monitor? i will input a laptop hdmi out to 2 different switchers; 1 via hdmi 1 via sdi.

"Output supports EDID of the monitor". https://en.wikipedia.org/wiki/Extended_Display_Identification_Data This simply means that the converter does not output a fixed format via HDMI, rather it will communicate with the connected display to handshake on what resolution the monitor prefers. If your outputs are going direct to switchers and not to a display/TV, then this should not affect you and converter will simply output what you set it up to do.

Will this converter let me use my iphone camera or apple tablet camera into atem mini switcher?

Im not sure because the mini switcher allows you to switch video outputs during streaming. The UpDownCross use one signal and let you distribute that signal through the sdi out and hdmi out..

Does this device come with a power supply?

the one i ordered through here did

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Mini Converter UpDownCross HD

Product ID: 70737398

Details

Brand
Blackmagic
Maximum Supply Voltage
36 Volts (DC)
Minimum Supply Voltage
6 Volts
Mounting Type
Handmontage
Number of Pins
125

⚡Low 5W power with wide 6-36V input range

🔄Universal SD/HD video format conversion

🔌Dual SDI & HDMI I/O with reference sync

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎥 Convert Like a Pro, Anywhere, Anytime!

COMPACT YET ROBUST - Lightweight 247g stainless steel design built for durability and easy hand-mounting in any environment.
PLUG PLAY VERSATILITY - Dual SDI and HDMI inputs/outputs plus reference input ensure flawless integration into any professional setup.
POWER ANYWHERE ANYTIME - Ultra-efficient 5W power consumption with a universal 6-36V DC supply keeps you running without limits.
SEAMLESS VIDEO FORMAT MASTERY - Convert any SD or HD video format effortlessly with industry-leading Teranex algorithms for pristine quality.
FUTURE PROOF SOFTWARE UPGRADES - Stay ahead with easy internal software updates compatible across Mac and Windows platforms.

The Blackmagic Design Mini Converter UpDownCross HD is a compact, professional-grade video converter that effortlessly transforms any SD or HD video format to another. Featuring dual SDI and HDMI inputs/outputs, built-in reference sync, and high-quality Teranex conversion technology, it ensures flawless video quality. With ultra-low 5W power consumption and a wide voltage range, it’s perfect for versatile setups. Compatible with Mac and Windows, it supports easy software upgrades, making it a future-proof essential for video professionals.

Specifications

ASIN	B07C2QMH6W
Best Sellers Rank	#43 in Digital-Analog Converters #126 in Video Converters
Brand Name	Blackmagic Design
Compatible Devices	Monitor
Customer Reviews	4.7 4.7 out of 5 stars (353)
Global Trade Identification Number	09338716005417
Interface	HDMI
Item Weight	247 Grams
Manufacturer	Blackmagic Design
Material Type	Stainless Steel
Maximum Supply Voltage	36 Volts (DC)
Minimum Supply Voltage	6 Volts
Model	BM-CONVMUDCSTD/HD
Mounting Type	Handmontage
Number of Channels	16
Number of Pins	125
Part Number	BM-CONVMUDCSTD/HD
Smart Home Compatibility	Not Smart Home Compatible
UPC	818206535185
Unit Count	1.0 Count
Warranty Description	2-Year Warranty

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48353 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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