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Reddit
reddit.com › r/usbchardware › usb-a male to usb-a male with a usb-c adaptor
r/UsbCHardware on Reddit: USB-A male to USB-A male with a USB-C adaptor
March 16, 2024 -

Hello. I purchased this USB-A male to USB-A male cable for an application involving an aircraft experiencing RFI interference with radios using typical USB cables. In short, USB-A to USB-C cables I tried, even with ferrite chokes, caused radio interference when connected to power on the USB-A end and an iPad on the USB-C end. One of the issue is the close proximity of the USB cable to the aircraft antenna, but that can't reasonably be changed.

The linked cable above is essentially double-shielded so I thought I would try it. I purchased a USB-A (female) to USB-C (male) adaptor to go on the iPad end of the cable. I just learned something I didn't know prior - USB-A male to USB-A male cables don't pass power in the typical way? I'm asking that to confirm. I am able to use a multimeter to check for voltage on the pins with the other end plugged into a USB wall charger and can pickup 5V on a pin - is there any way to make this cable work for my application with some kind of adaptor?

Top answer
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Long story short: A-A cables are fundamentally broken and should not exist. Don't use them. An A plug always goes into a device sourcing power, and a B plug always goes into a device sinking power. A-A means connecting a source to a source, which leads to Bad Things. USB-C is a bit different. The cable is the same on both ends, so it features a special wire the two devices use to communicate who's going to be the sink and who's going to be the source. An A-female-to-C-male adapter has a thingy inside it which tells the attached C device that the adapter cable is a sink, on the other hand an A-male-to-C-male adapter has a thingy which tells the C device that the adapter cable is a source. USB also has "Host" and "Device" roles. Basically, the Host takes a leading role in the data connection, the Device only responds to requests from the Host. With classic USB, the Source is always also the Host, and the Sink is always also the Device. USB-C makes the same assumptions, but there is the possibility to swap either power or data role. One final bit is that USB-C has "dual-role ports", which can act as both a Source/Host and Sink/Device. They'll check what gets attacked, and take the other role. So why does all this matter? You probably have a charger or something with a female USB-A port, which you are connecting to an iPad with a female USB-C port. If you use a male-A-to-male-C cable, everything works fine: the charger is fixed to the Source role and assumes you're connecting a Sink - because that's the only possibility. The A-C cable acts as a Sink on the A connector (no other option, after all), and on the C connector has a little marker indicating it's a Source. The iPad senses that a Source is connected, so it starts acting like a Sink - and the iPad is happily charging. It can even talk data, if the charger is actually something fancy which can act like a Host. When you plug in the A-A cable, the charger is still in its fixed Source role, and the charger-side has its fixed Sink role. All fine. The iPad-side is also an A plug - which means it's also in a Sink role. That's bad, really bad! You now attach the female-A-to-male-C cable. The female-A part is fixed in Source role - so there are now two Sources connected to the A-A cable. The male-C part has a little marker indicating to the iPad that a Sink has been attached - so the iPad reconfigures the port into Source mode, starts supplying power, and tries to behave like a data Host...
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Please throw out that usb a to a cable. It is dangerous and I am very glad it is not passing power. https://digirig.net/product-category/cables/usb-cables/ or https://www.amazon.com/Digirig-Shielded-Short-USB-C-Ferrites/dp/B0BJ182J9J/ or https://www.amazon.com/Shielded-Short-USB-C-Cable-Ferrites/dp/B0BJ1BF5YQ/ If you still have trouble you can experiment with a usb isolator
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Staples
staples.com › computer-accessories-peripherals › cables-cable-accessories › cables › startech usb to usb c cable, 1m / 3 ft, 5gbps, usb a to usb c, usb type c, usb cable male to male, usb c to usb
StarTech USB to USB C Cable, 1m / 3 ft, 5Gbps, USB A to USB C, USB Type C, USB Cable Male to Male, USB C to USB | Staples
StarTech USB to USB C Cable, 1m / 3 ft, 5Gbps, USB A to USB C, USB Type C, USB Cable Male to Male, USB C to USB
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Best Buy
bestbuy.com › site › searchpage.jsp
usb cable male to male - Best Buy
Miro - U5 Type C to USB Charger Cable Adapter USB C Female to Male Charger Converter - Black · Not yet reviewedNot yet reviewed · $4.99 · Add to cart · j5create - 100W Super Charger - Works with Chromebook Certified - Black · Rating 4.6 out of 5 stars with 778 reviews(778) $39.99 ·
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Computer Cable Store
computercablestore.com › adapters & couplers › usb adapters › usb adapters › usb 2.0 adapter - usb micro male to usb c male - 3 pack
USB 2.0 Adapter - USB Micro Male to USB C Male - 3 Pack | Computer Cable Store
USB 2.0 Adapter - USB Micro Male to USB C Male - 3 Pack
Description · Networx® USB 2.0 Adapter - USB Micro Male to USB C Male's will provide you with the ability to convert a USB cable's gender and connector type. Take note that when using this adapter to combine multiple USB cables, make sure that you do not exceed the 16 foot recommended USB limit. In order to extend your cable further, try our USB Active Extension cables. · USB 2.0 Adapter / Gender Changer · Connectors: Male USB Micro to Male USB C · Designed to convert a Male USB Micro into a Male USB C or a Female USB C into a Female USB Micro · Quantity: 3 Pack
(4.9)
Price   $6.29
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L-com
l-com.com › home › usb › cable assemblies › usb type-c cable assemblies › cau31cc
USB Type-C Cable - USB 3.0 Type C Male to Type C Male
USB Type-C Cable - USB 3.0 Type C Male to Type C Male - L-com's CAU31CC series of USB cables feature simple
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Comprehensive
comprehensiveco.com › home › technologies › usb-c › usb-c cables › standard series usb 2.0 usb-a to usb-c cable 3ft
Standard Series USB 2.0 USB-A to USB-C Cable 3ft
Standard Series USB 2.0 USB-A to USB-C Cable 3ft
Features• Provides high speed connection for USB 3.1 type-C peripherals • USB C male to USB 2.0 A Male • Perfect for charging USB Type C devices • Plug and play functionality for printers, scanners, keyboards and other digital devices • PC, Mac, and mobile compatible • Compatible with USB specifications 1.0, 1.1• Molded Strain Relief • RoHS Compliant • Lifetime Warranty DescriptionComprehensive's USB 3.1 Type-C Cables support data transfer rates up to 10GbpsComprehensive's SuperSpeedplus 3.1 cable provides for simultaneous operation of SuperSpeed (USB 3.0 speeds) and non-SuperSpeed (USB 2.0 sp
Price   $13.99
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Amazon
amazon.com › usb-c-male › s
Amazon.com: Usb C Male To Male
AreMe 2 Pack USB C Male to Male Adapter, USB Type C Coupler Extender Support 100W, 40Gbps, 8K@60Hz for Thunderbolt 4/3, MacBook Pro/Air, Laptop, Phones and More Type C Devices (Purple) · Duttek USB C to USB C Adapter 40Gpbs, 8k@60HZ and 100W Fast Charging, Type C Male to Male Adapter Compatible ...
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Walmart
walmart.com › electronics
Usb C To Male
Nippon Labs 6.6ft. USB Type C 3.1 Gen 2 Male to Male Cable, 10G, 3A, BLACK Type-C cable, 2 Meters 30C-10UC-32CC1-2
Find elsewhere
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C2G
cablestogo.com › cables › usb › usb-2-0-cables › 3-3ft-1m-usb-2-0-a-male-to-a-male-cable-black › p › cg-28105
Legrand AV | C2G CG28105 1m USB 2.0 A Male to A Male Cable - Black ...
Vaddio Production is moving to New Legrand | AV Headquarters Jan. 2-26, 2026. Place your orders on or before Dec. 5th to avoid business disruption. Happy Holidays! See the complete listing of holiday closures and adjusted hours across our locations. ... Cable Drop vs.
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Best Buy
bestbuy.com › site › searchpage.jsp
male to male usb adapter - Best Buy
Shop for male to male usb adapter at Best Buy. Find low everyday prices and buy online for delivery or in-store pick-up
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Amazon
amazon.com › Male-Usb-Cable › s
Amazon.com: Male To Male Usb Cable
male to male 3.5mm audio cable · usb extension cable · Previous · 1 · 2 · 320 · Next · Visit the help section or contact us · Go back to filtering menu · Skip to main search results · Popular Shopping Ideas · Usb 3.0 · 10 Ft · 3 Ft · 1 Ft · 6 Ft · Usb-c See more ·
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C2G
cablestogo.com › adapters-docks-and-hubs › usb › usb-c-adapter-cables › 1-5ft-0-46m-usb-c-male-to-usb-a-male-cable-usb-3-2-gen-1-5gbps › p › cg-c2g28876
Legrand AV | C2G C2G28876 1.5ft USB-C® Male to USB-A Male Cable ...
Vaddio Production is moving to New Legrand | AV Headquarters Jan. 2-26, 2026. Place your orders on or before Dec. 5th to avoid business disruption. Happy Holidays! See the complete listing of holiday closures and adjusted hours across our locations. ... Cable Drop vs.
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CABLETIME
cabletimetech.com › home › usb 3.0 type a male to type a male cable
CABLETIME USB 3.0 Type A Male to Type A Male Cable
CONNECTOR TYPE: USB 3.0 Type A ... Warranty ... USB 3.0 Type A male-to-male cable connects peripherals to your PC and laptop for data transfer at up to 5 Gbps....
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Walmart
walmart.com › ip › USB-to-USB-C-Adapter-2-pack-Type-C-Female-to-A-Male-Cable-Connector › 2541535636
USB to USB C Adapter 2 pack, Type C Female to A Male Cable Connector - Walmart.com
USB to USB C Adapter 2 pack, Type C Female to A Male Cable ConnectorUSB to USB C Adapter 2 pack Type C Female to A Male Cable ConnectorUSB USB C Adapter 2 Pack Type C Female Male Power Adapter iPhone 15 14 13 12 Mini Pro Max Airpods iPad Air 4 5 Samsung Galaxy Note 10 20 S21 S22 S23USB USB C Adapter 2 Pack USB C Female Male Charger Type C Converter Apple Watch Ultra iWatch 7 8 SE iPhone 14 13 12 11 Plus Pro Max Mini AirPods iPadMangoFeel USB USB C Adapter 2 Pack USB C Female Male Charger Type C Converter Apple Watch Ultra iWatch 7 8 SE 14 13 12 11 Plus Pro Max Mini AirPods iMangoFeel USB C to
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Reddit
reddit.com › r/usbchardware › usb a male to usb a male cable
r/UsbCHardware on Reddit: USB A male to USB A male cable
April 26, 2024 -

Hey guys, it's my first time making this kind of post coz I'm hella confused. I dont know if its the right place to ask this question but kindly do help me out with this if possible.

I have an arcade stick and it has a 5pin female (from motherboard) to USB 2.0 male output for connection (Reference Pic 1). However, the cable management is poor. That's why I wanted to have a detachable cable mod. Normally, I could shorten the cable but dont have tools for it.

Alternatively, one could buy that same cable in short length. But I couldn't find it where i live. The one i found is 5pin female to USB 2.0 female output (Reference pic 2) and not the actual intended like was in pic 1.

I would like to know if I could use that cable in my stick and then use a USB male to male cable or even USB A male to USB C. Even if i could use it, will there be any consequences as i read that we are not supposed to use male to male unless it has A,B male types.

Please do leave your suggestions. I would really appreciate it.

Top answer
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However, the cable management is poor. Looks pretty ok to me with those plastic clips the excess length is wrapped around and the zip tie. I suspect the type A male connector comes from the peripheral PCB. That's not what we usually call a motherboard. Motherboard is what we call the PCB of the host computer. But I can't tell for sure where the cable leads to because I can't see what your cable is connected to on pic 1. I suggest posting a better pic. And pic 2 is not directly relevant because that is just the kind of cable, that you don't want, if I understand you correctly. How about you just cut a piece out of the cable from peripheral? USB 2.0 is not very picky about the cable. Cut a piece out and solder the 4 wires of the ends back together. Ground to ground. +5V to +5V, D+ to D+ and D- to D-, and maybe a shield around it. could shorten the cable but dont have tools for it. get the tools! soldering iron, solder, cable cutters, and heat shrink. That's my suggestion.
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No, you cannot use a standard compliant USB A plug to USB A plug cable or a standard compliant USB A plug to USB C plug to power the device. The first cable does not transfer power, only superspeed data. It only has the ground and superspeed pairs connected, the power and data lines are not connected by design. The latter cable is designed for the wrong power direction. Your USB C device will expect the other side to source power, not sink power, so it cannot communicate. Use plugs and receptacles for their intended goals
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MiniTool
minitool.com › home › knowledge base › types of the usb to usb cables and the usage of them
Types of the USB to USB Cables and the Usage of Them - MiniTool
December 12, 2024 - Tip: To learn more information on USB, you can go to the MiniTool official website. The right cable has an electronic circuit in the center (you will see the bump) and has male USB connectors at both ends. You can use it to transfer data between two devices.
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Computer Cable Store
computercablestore.com › adapters & couplers › usb adapters › usb adapters › usb 2.0 adapter - usb a male to usb c female - 3 pack
USB 2.0 Adapter - USB A Male to USB C Female - 3 Pack | Computer Cable Store
USB 2.0 Adapter - USB A Male to USB C Female - 3 Pack
Description · Networx® USB 2.0 Adapter - USB A Male to USB C Female's will provide you with the ability to convert a USB cable's gender and connector type. Take note that when using this adapter to combine multiple USB cables, make sure that you do not exceed the 16 foot recommended USB limit. In order to extend your cable further, try our USB Active Extension cables. · USB 2.0 Adapter / Gender Changer · Connectors: Male USB A to Female USB C · Designed to convert a female USB A into a male USB C or a female USB C into a female USB A · Quantity: 3 Pack
(4.9)
Price   $6.29
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Walmart
walmart.com › cell phones
Male to Male USB Cables
From $11.04USB 3.0 A Male to Male Cable 1FT, Lonian USB 3.0 A Male Cable for Hard Drive,Laptop,DVD Player,TV,USB 3.0 Hub and More, Black ... Cmple - USB Printer Cable 6ft Male to Male USB 2.0 A to B Cable USB Type B Printer Scanner Cable Compatible with Inkjet Printer, Laser Printer, Copier Machine - Black
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Reddit
reddit.com › r/explainlikeimfive › eli5: why are male to male usb-c cables not dangerous like male to male wall plugs are?
r/explainlikeimfive on Reddit: ELI5: why are male to male USB-C cables not dangerous like male to male wall plugs are?
December 24, 2022 -

I guess it has to have some functionality to prevent the contact from being hot while unplugged, but if it can be implemented in USB-C why can't it be implemented on wall plugs?

Thanks.