I used an actual USB 3.0 cable and it worked fine, transfer rates +500 MB/s. I have the two side by side for reference. The 3.0 cable is twice as thick.
Does the USB 3.0/2.0 cable have the 9 pins it’s supposed to have? Should be 4 pins running to the front with an additional 5 pins towards the back of the connector.
DVI has the problem of having like 3 or 4 different standards for the cable. I think HDMI is in a far worse situation with needing to pay attention to which HDMI standards the cable supports and in many cases the cheaper cables don’t really meet the spec. DisplayPort seems better until you need a cable longer than about 6ft which I ran into and bought like 3 different cables each of them kind of, sort of works.
I have not had problems with USB cables, other than the USB type C cables could be 2.0, 3.0, 3.1, 3.2, thunderbolt 3, or displayport (maybe more) and could support different power standards, but I don’t think I have run into any cables that don’t run at the speeds that it says. Of course I rarely use USB for more than keyboard/mouse and charging now anyways.
ive had this mostly with hdmi cables claiming to be 4k and flickering and turning off especially at 4k60.
I go on the actual thickness/weight/gbps ratings and only buy them in person now.
Fun fact. At my local big box electrical place. I was looking at hdmi cables in the TV section and a 27gbps 2m cable was over £100
I walked over to the pc section in the same shop and in with the peripherals was a 2m 27gbps cable for £20 it was just in a gamery box and its black and orange sleeved.
Hmm I have refused to buy cables in person because they always seem overpriced. When I can get a good quality 10ft HDMI cable that meets what I need for like $5 online or go to the store and spend $20 for probably a worse cable I will order online every day even if I sometimes have to order 3 or 4 of them to find a good one and return the rest.
I will also add to this discussion that I have a very hard time finding “cat 6” or higher ethernet cable that is really cat 6 or higher and has proper connectors on the ends. The standard requires the cables had a plastic divider inside dividing the pairs and the connector has staggered ends to help keep twist into the connector. I almost never see this.
Buying in person you can feeling it is suspiciously thin/flexible.
USB3 also has the extra pins you can look for in person?
Not the end of the world to send back something ordered online, but takes extra days.
Saves having to go into the big Blue room too…
Did you cut it open to see if it is wired? I bought a USB 3.0 extension for an external drive that was twice as thick as the original, but both ran full speed. I just wanted a longer cable. It’s possible a single wire inside was malformed in the factory and it defaults to USB 2.0 speeds.
It is possible they only ran 4 wires, but the connectors on the end are the expensive part, so it would be really weird to cheap out on the cheapest part.
I have actually bought quite a few cables that were quite thick and heavy only to find that most of it was just outer cladding not actually thicker wires and those cables were far worse than ones that I have bought that were thinner, and cheaper, but from a company that I know makes good cables.
Red, White, Green, Black, Ground Drain (exposed copper cable). If the 2 wraped cables are Purple, Orange and Blue, Yellow. Than this is a 3.0 cable standard.
That should not affect the data rate and hard to tell for sure, but it looks like it should be fine for the power to me. My guess is just low quality conductors, or connectors or bad job attaching the connectors. Essentially more of a QC issue than any intent to deceive. Quite common in my experience on the low end of cables.