Question 1

Is this usb-if compliant? if so, can you offer proof?

Accepted Answer

Lol. He meant USB-II (aka USB 2.0).

Yes. These are USB 2.0 cables.

This cable is meant for Qualcomm Quick Charge 2.0 (2 Amp - 10 Watt). It does not support Qualcomm Quick Charge 3.0 (3 Amp - 15 Watt).

This cable is: Fast Charge 2.0 only. If the cable specs say 2.4A and/or data transfer speeds of 480 mbps, then it is a Fast Charge 2.0 cable. Also, all cables that say they charge "Up To 3amp" or "Up To 3A" are USB 2.0 cables and do don't meet the quick charge/fast charge speed requirements of USB 3.0. USB 2.0 cables can charge devices up to 2.4 amps, but most USB 2.0 cables actually charge at a much slower charge rate. Most sellers try to round up on the theoretical 2.4A figure and market their cable as a cable that can charge devices up to 3A (aka up to 3 amp).

Samsung Galaxy S10, S10 Plus, S10E and S10 5G support Qualcomm Quick Charge 3.0 USB C Cables (15 Watt to 18 Watt) and Qi Wireless Fast Charge Plates (15 Watt to 18 Watt).

Note:  Quick Charge 3.0 cables charges a lot faster than Quick Charge 2.0 cables. Also, the 2nd most important part of getting an actual USB 3.0 cable is how much faster it will transfer files on/off your phone or device. See "Note 1" below for actual transfer speeds. Please be aware that these are theoretical transfer speeds. Your device and your computer or OTG flash memory device has to support those theoretical listed speeds in order to get the theoretical listed speed of the cable.

Note 1:  
The now-aging USB 2.0 standard can theoretically transfer data at a very high 480 megabits per second (mbps), or 60 megabytes per second (MBps). That's impressive, but not as much as the newer USB 3.0, which can handle up to 5gbps (640MBps)—over ten times as fast as the 2.0 maximum.

Note 2: 
My device is a Samsung Galaxy S10 Plus and my USB cables are USB 3.0 cables. My wall charger that I purchased seperately is a Qualcomm Quick Charge 3.0 18W charger. Using these components, my phone will charge from 0% to 90% in under an hour. If I use the same wall charger and a USB 2.0 fast charge cable designed for Qualcomm Quick Charge 2.0, my phone will still say "Fast Charging" on the main screen, but it will take about 1.5 hours to charge. Make sure your Wall Charger, Car Charger and/or External Battery Pack "Output" USB 3.0 port(s) are rated for 15 to 18W (outputs between 15 Watts to 18 Watts) in order for your USB C 3.0 data/sync cable to charge your device at the best possible speed.

Note 3: 
Checkout "GSMarena.com" and look up your phone to see what USB cables and Watts your phone will support (example: USB 2.0, 2.1, 2.4, 3.0, 3.1).

Sincerely, 
Jacob
SurvivalGeek (YouTube)
https://www.youtube.com/channel/UCfRsUPToBXp4ZIre__dJg4A

Question 2

If the usb-c is plugged into an ssd drive and the usb 2.0 into a macbook air 3.0 usb port, what will the transfer speed be, 2.0 or 3.0?

Accepted Answer

I was disappointed to find out that the transfer rate with this cable is only at USB 2.0 speeds. 95MB/sec. The Techole USB 3 to USB C will give you the 300MB/sec you are looking for.

Question 3

Can this be used to charge the latest Macbook with an external battery?

Accepted Answer

In short...no.  I tried to use it to extend the length of the Apple USB-C  Digital AV Multiport Adapter.  Once I plugged this in, the laptop no longer charged (Macbook Pro 13 late 2016).

Question 4

will  this cable work with a oto scope  450 NTE?

Accepted Answer

Dear customer,
Please kindly noted that as long as your oto scope 450 NTE has a USBＣcharging port, this Short USB to C Fast Charging Cable can work. Please make sure your device and charger support Fast Charging& Quick Charge (QC), otherwise, Otherwise, the fast charge of this cable will not work .
Any questions, please feel free to contact us from Amazon Message Center.
Thanks!

ASIN	B0C3LFTY71
Best Sellers Rank	#443 in USB Cables
Brand Name	CableCreation
Cable Type	USB
Color	Black
Compatible Devices	Charging Adapter, Smartphone, Tablet
Compatible Phone Models	S10, S21, Samsung Galaxy S22
Connectivity Technology	USB
Connector Gender	Male-to-Male
Connector Type	Usb
Customer Reviews	4.6 4.6 out of 5 stars (23,645)
Data Transfer Rate	480 megabits_per_second
External Testing Certification	Não Aplicável
Indoor Outdoor Usage	Indoor, Outdoor
Item Shape	Round
Item Weight	0.01 kg
Manufacturer	CableCreation
Maximum Current	3 A
Maximum Voltage	5 volts
Model	CC1257
Number of Items	1
Number of Pins	28
Other Special Features of the Product	Braided, Fast Charging
Outer Material	Nylon
Part Number	CC1257
Recommended Uses For Product	Fast Charging
Specification Met	RoHS
Unit Count	1 Count
Wattage	15 watts

Short USB C to USB A 6inch,USB A to Type C Cord for iPhone/Laptop/Carplay

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