Why do these need power? And should I just buy the newer version , that come with a power supply?

You need the power for the components that convert the signal to HDMI from a Coax (SDI) connection. You need power regardless of which unit you buy. The one that comes with a power supply is the only difference from the one that does not. I buy about 1/2 and 1/2 - without power supply and with power supply. The micro USB port on the back is where the power plugs into the unit. The ones I get with no power supply, still require power but I have a bunch of 18" USB to micro USB cables that are not used. I plug into the USB on a TV or Projector to get the power and a 1 foot HDMI cable from this unit to the TV or Projector and it is all closely contained. I purchase the ones with the power supply to use in locations where I won't be close to a USB but have power close by. Like at the main equipment rack for the broadcasting. I don't have empty USB ports and so I rely on the power plug. Another reason for a unit with No power supply, in case something happens to one that has a power supply, I don't need another power supply, I need to get another SDI to HDMI converter, just use the old power supply. Blackmagic Design markets their equipment smartly. So there are reasons that they sell both with and without a power supply, but regardless, you need power for these units to work. I hope this helps

Will this convert analog sdi to hdmi out? i have a canon xha1s with analog sdi out. if not, what would you recommend?

SDI = Serial DIGITAL Interface. Nothing analog about it. From Wiki: Serial digital interface (SDI) is a family of digital video interfaces first standardized by SMPTE (The Society of Motion Picture and Television Engineers) in 1989.[1][2] For example, ITU-R BT.656 and SMPTE 259M define digital video interfaces used for broadcast-grade video. A related standard, known as high-definition serial digital interface (HD-SDI), is standardized in SMPTE 292M; this provides a nominal data rate of 1.485 Gbit/s.[3]. Other than that, I own two of these (and their opposites, HDMI to SDI and they save me about 200# in the pack... 800' of SDI cable weighs a LOT less than 800' of VGA.

I just connected this to a usb port on my computer and it was reading it as an actual device. is the usb connector for power only?

USB is for power, firmware upgrades, and programming of the device - not much to program, but it is there. Your computer sees it as a device but you need the Blackmagic Converters Setup Utility to read and program the device - you download that from the BMD website

Can i run a 2k image (sdi) from a camera to the converter and send to a monitor (hdmi 1080p) and loop the picture to another sdi monitor?

Nope, they don't support anything over 1080 60

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K**M

Works great

Works great no issues

3.12.2025

E**E

Does what it says

Cool. Smaller in person (like any celebrity, except Gina Davis, she's much taller than you'd think. This is the Tom Cruise of converters). 100% functional so far. Good video and all audio channels. Ironically am using it to fix the HDMI output from a couple of Decklink Mini Monitors, which flicker with receivers (tried 4 different) which when going SDI-HDMI work fine. Ironic, because theis BMD unit is fixing other BMD units. They claim its an EDID protocol thing, but then, okay. Anyway yes, good. Carry on.

31.01.2020

M**K

Works as expected

Nice thing about it, you can power it with a battery pack for your smart phone. It is very sturdy, a bit on the heavier side, but I would buy it again.

27.01.2019

C**O

El producto es bueno, pero sentí que lo empacaron de cualquier manera y la caja llegó abierta, aún el producto funciona perfectamente.

1.10.2025

J**.

Turns your consumer grade HDMI monitors into an SDI monitor for $40

We used velcro to adhere one of these to each of our rental TV's. They are cleverly powered via the USB port that most monitors have nowadays, and have made deployment of our TV's over long distance runs simple, and cost effective. We have had no problems as of yet with these recognizing multiple resolutions and formats sent over SDI.

26.06.2019

N**E

plug and play with ease

works extremely well

13.02.2025

G**E

Don't purchase this.

Broke in less than a month of use.

14.06.2025

R**G

great product

excellent purchase. reliable brand. exactly what i needed for work.

13.08.2018

G**O

The Timing, it arrived on time and good value for money

29.04.2019

A**Y

No complaints delivers SDI feed to HDMI very nicely.

4.04.2019

M**S

Funktioniert super

26.01.2019

L**S

8.01.2021

M**S

had issues with other brands and tried multiple ones. This one connected instantly! works perfect as a receiver .

24.02.2020

ASIN	B077QQWJYF
Best Sellers Rank	#210 in Video Converters
Customer Reviews	4.3 4.3 out of 5 stars (202)
Date First Available	November 25, 2017
Is Discontinued By Manufacturer	No
Item Weight	5.6 ounces
Item model number	CONVCMIC/SH
Manufacturer	Blackmagic Design
Product Dimensions	9.1 x 9.1 x 9.1 inches

SDI to HDMI Micro Converter, Without Power Supply

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