It is meant to turn on a desktop power supply outside of a computer.

I want to use this to power up two 3070s, is it safe? My psu has enough wattage.

this is for start up psu for water cooling pump for put in new water coolant and bleed out bubble

Can i use this to start a pwm pump for a water cooling loop?

Since this requires your 24-Pin ATX connector you'll need to get power for your PWM pump from something other than the motherboard. Any Molex or SATA to fan adapter cable should work.

Does this item have a resistor inside it or is it literally just a wire connecting the 2 pins?

Granted it is pretty much a wire connecting the two but this is way safer because it covers up all the other pins. It’s all one plug. A nice cheap product to keep on hand.

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A**A

Simple solution to troubleshooting a powersupply problem.

Sizing of interconnection is no problem with this jumper. I just hope I can find it the next time I need it. Works perfectly.

8.10.2024

J**N

Perfect Solution for

Simple solutions are the best solutions. I am using this to power multiple Corsair, Seasonic, and be quiet! PSU's for various use cases ranging from powering a fan stack exhausting dust generated by my CNC and laser-cutter to fans used in a custom-built Mac Mini mini-rack.Typical exhaust fans are extremely loud, so instead of standard options, I opted to create a fan stack using Noctua and be quiet 120-140mm fans. Using a SATA-powered PWM hub, this connector allows me to keep the hub online and the fans running at full speed during operation of the CNC and laser-cutter.For the custom-built Mac Mini mini-rack, this allows me to run an SFX PSU within the chassis of the rack and draw intake to the base of the Mac Mini, driving exhaust through the backplate at a faster rate.

9.10.2020

S**K

Trouble shoot power supply

Grounds and simulates Good power signal from motherboard. Allows full op of power supply and metering of unloaded operation

11.06.2024

C**S

Simple working piece.

Simple jumper to get a PSU going for testing. Cheap and fits perfectly for a 24 pin.

27.02.2023

R**A

For Always On Power to GPU Rig

Tricks the ATX 3.0 power supply to be always on. Use case is powering external GPUs for training on a Dell R630 U1 server. GPUs are in a rig attached to the server via a 600mm GPU riser cable (ASIN B0C415XBQZ). Works well.

11.01.2024

T**T

Works but would be better without the jumper

You buy one of these when you want to test a PC power supply and turn it on without a motherboard.All it does is shorting (maybe with a resistor) 2 pins.This works without any problem.I would have given more stars if the short was "internal" and not external like on the photo and ready to be pulled off by mistake.Also DO CHECK if your new power supply comes with one already. Mine did, I just didn't check ;-)In case that helps someone, if you have an AsRock motherboard that does not power up the power supply, it's likely not the power supply, but the coin cell battery on the motherboard that is dead. Fancy server motherboards apparently are not happy with dead cell batteries...

9.12.2021

D**E

This werqs

Used this to fire up the cooling system on my computer, to get the air out, without having to power up the whole computer.These are easy to make but for the price It was easier just to buy this.

14.02.2025

P**R

Indispensable

You can use a paper clip, but why take the chance of damaging the pins. Handy to have if you work on computer psu

8.01.2025

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Connector Quantity	1
Maximum Input Voltage	2.4E+2 Volts
Minimum Input Voltage	1E+2 Volts (AC)
Cooling Method	Water, Air
System Bus Connector Type	24 Pin
Compatible Devices	Personal Computer
Connector Type Used on Cable	ATX
Output Wattage	500 Watts
Form Factor	ATX
Item Weight	0.01 Pounds
Item Dimensions	3 x 2.75 x 0.69 inches

CRJ 24-Pin ATX Power Supply Jumper Bridge Tool

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