Where are all the USB 3.x Devices ? - Page 1
Forum section: electronics / beginners

author: theoldwizard1
author_rank: Regular Contributor
timestamp: March 26, 2016, 03:56:00 am
content: I have heard various rumor. Hardware can't be certified, etc. Issue related to interfacing it with today's microprocessors. Driver software.Or is it simply, USB 2.0 is "good enough" and CHEAP ENOUGH for the vast majority of device that we use USB for (memory sticks, keyboards, mice, low end cameras, etc).

author: elgonzo
author_rank: Unknown
timestamp: March 26, 2016, 04:36:09 am
content: There are plenty of USB 3 devices. Mostly of the mass storage variety...Why would you want USB 3 for keyboards and mice?Heck why would you even want USB 2 for keyboards and mice?

author: ade
author_rank: Unknown
timestamp: March 26, 2016, 05:17:34 am
content: Yup, I have a whole bunch of portable hard drives from Lacie and WD, all USB 3.My camera (Nikon DSLR) is USB 3.Also the CF/SD memory card reader (Lexar) is USB 3. They also make USB 3 flash drives.I've seen many USB 3 to Ethernet dongles, though mine is Thunderbolt.

author: Senpai
author_rank: Contributor
timestamp: March 26, 2016, 05:19:16 am
content: It's mostly HDD's (for speed) and phones (for charging) that benefit from it. Everything else, the current and speed limitations of USB2 are usually more than enough. So no surprise they're in no hurry to adopt USB3.Would be nice in some ways if more things started using the type C plug though. Hopefully it proves a bit more robust than micro-B has.

author: Kilrah
author_rank: Unknown
timestamp: March 26, 2016, 06:14:24 am
content: What actually has a use for the extra capabilities has used it for a long time, but as already said you don't need a 5Gbps transfer rate for a mouse so why pay more in that case. Apart from storage, networking and display there isn't much that does. And the last 2 are usually built-in eliminating the need for an additional external interface, so no wonder 90% of USB3 uses are storage.+1 for a move to C though.

author: Zbig
author_rank: Frequent Contributor
timestamp: March 26, 2016, 12:01:00 pm
content: Quote from: blueskull on March 26, 2016, 07:51:42 amEven more pointless given that USB 3.X cables add 5 additional wires and pins to the existing cables. It's really like a new physical interface crammed inside/tacked on an existing one.

author: Mechatrommer
author_rank: Super Contributor
timestamp: March 26, 2016, 02:18:22 pm
content: when USB3 was not the buzz in my place 1-2 years ago, i bought newer kingston pendrive as replacement for my old kingston pendrive that i thought will die soon. data transfer is a bit unusual on newer pendrive, it took longer moment on the beginning of each file transfer. so got me wonder if i got a broken unit. teared it apart (remember this is only days after purchase, warranty voided) and see if it has any lose connections or what not, but none visible to my eye sight everything are just fine, so i put it back together. only recently to find out that the latest pendrive is actually USB3.but my day to day use i still use my older USB2 pendrive (which is still alive) for transferring many small files, since it has no unusual time lapse as the USB3 has. now when the USB3 is the buzz (i bought cheap PCIex USB3 board from china to put in my old machine), i bought newer USB3 external HDD casing, to compare with my older USB2 casing (that i thought has died but in fact hasnt), USB3 is prominent in speed for GBytes size of file transfer, but still with the annoying time lapse in the beginning of each transfer, i dont know what they are thinking.

author: Jeroen3
author_rank: Super Contributor
timestamp: March 26, 2016, 02:26:09 pm
content: Quote from: elgonzo on March 26, 2016, 04:36:09 amUSB 3.0 allows for interrupts from the device. Not limited by the maximum 1 KHz polling rate of USB 2.0 HID devices.I don't know if this will have any noticeable effect. But it's something.USB 1.1 has an even lower polling rate, 125 Hz if I'm not mistaken.

author: Zbig
author_rank: Frequent Contributor
timestamp: March 26, 2016, 02:42:53 pm
content: Quote from: Mechatrommer on March 26, 2016, 02:18:22 pmIt's not anything inherent to the USB 3.0 as such but rather something wrong with your particular USB stick. There's nothing like that with my Lexar stick.

author: Len
author_rank: Frequent Contributor
timestamp: March 26, 2016, 02:48:20 pm
content: Quote from: Jeroen3 on March 26, 2016, 02:26:09 pmIf USB 3 made a difference for mice and keyboards, Razer would be selling them.Also, all the USB 3 cables I've seen are thick and heavy - not suitable for mice.

author: amyk
author_rank: Super Contributor
timestamp: March 26, 2016, 03:05:48 pm
content: Quote from: Jeroen3 on March 26, 2016, 02:26:09 pmHow is that possible? I don't see any interrupt line on the USB3 connector.

author: Zbig
author_rank: Frequent Contributor
timestamp: March 26, 2016, 03:23:47 pm
content: Quote from: amyk on March 26, 2016, 03:05:48 pmIt's finally full-duplex (dedicated upstream and downstream differential pairs), so while there's no interrupts in the traditional sense, I think devices got a chance to signal their need for attention (with some "interrupt packet"?) without being polled by the host.

author: Kalvin
author_rank: Super Contributor
timestamp: March 26, 2016, 03:38:50 pm
content: Saleae Pro-series logic mixed signal analyzers use USB 3.0 if available.

author: Nerull
author_rank: Frequent Contributor
timestamp: March 26, 2016, 03:40:53 pm
content: I doubt even the high end gaming companies want to incur the higher costs just so they can print a higher polling rate on the side. My logitech mouse does 1khz, but that's not perceptively different than 500hz, or 250hz, for that matter. A mouse is a device operated by human beings, and humans can't time things to within a thousandth of a second no matter how fast their input device updates.

author: rdl
author_rank: Super Contributor
timestamp: March 26, 2016, 03:47:52 pm
content: Judging by transfer speed specifications I've seen for USB 3 flash drives, some of them are nothing more than USB 2 drives that have been repackaged. I haven't checked in a while though, maybe they've finally gotten rid of their old stock.

author: Kilrah
author_rank: Unknown
timestamp: March 26, 2016, 03:54:36 pm
content: Someare getting better.The first one I bought a few years ago though...About 6MB/s writes i.e. 4x less than a good USB2 drive, although it did exceed max USB2 speeds a little for reads.But the worst thing about it was that their controller was somehow loaded with a lot of cache, about 60MB it seemed... so that if you tried to write something smaller it would seem instantaneous, very quick up to about 100MB. Until you did "eject" or waited until the LED stopped flashing that is, and it took 10-15sec to flush the cache. That was one where you REALLY wanted to wait for the LED to go quiet.

author: Zbig
author_rank: Frequent Contributor
timestamp: March 26, 2016, 03:58:26 pm
content: Quote from: rdl on March 26, 2016, 03:47:52 pmWell, how about this one

author: mariush
author_rank: Super Contributor
timestamp: March 26, 2016, 04:53:49 pm
content: Just last month, i bought a USB 3.0 usb stick, this one :http://www.amazon.com/SanDisk-Ultra-Flash-Drive-Version/dp/B00DQG9OZ2It does work at speeds higher than usb 2.0, can't complain.

author: elgonzo
author_rank: Unknown
timestamp: March 26, 2016, 06:28:13 pm
content: Quote from: Jeroen3 on March 26, 2016, 02:26:09 pmOkay, it's a gamer thing then? Not being a "gamer" myself (doesn't mean i don't play video games, i am just not convinced by the majority of products marketed to "gamers" and thus do not associate with the "gamer" market segment), but if you want to play with new HID toys that really would benefit from USB3 then the more power to you... (figuratively and literally)Quote from: Jeroen3 on March 26, 2016, 02:26:09 pmNope. USB 1.1 fullspeed allows for a minimum service interval of 1ms -- the same as for USB 2.0.

author: Jeroen3
author_rank: Super Contributor
timestamp: March 26, 2016, 07:03:30 pm
content: I'm using a MX Master wireless mouse. I wouldn't know the difference!That 1 ms for USB 1.1 makes sense, since you never get the notification "this device can run faster ..." if I attach a HID to a my isolated USB 1.1 hub.

author: Zbig
author_rank: Frequent Contributor
timestamp: March 26, 2016, 07:33:20 pm
content: Quote from: Jeroen3 on March 26, 2016, 07:03:30 pmI've got this one myself. I'm short of words to describe how awesome the thing is. This time the buyer's remorse ("this much for only a mouse") subsided for me quite quickly.Quote from: Jeroen3 on March 26, 2016, 07:03:30 pmThat is actually detected by tying the data lines to voltage/ground in specific ways. This was posted by someone on this forum:http://www.usbmadesimple.co.uk/and is describing it quite nicely.

author: RGB255_0_0
author_rank: Frequent Contributor
timestamp: March 26, 2016, 07:35:58 pm
content: Quote from: Zbig on March 26, 2016, 03:58:26 pmSort of thing I've been doing by using an old Sandisk SSD via USB>SATA adapter for large file transfers.And you can bet your money on some Korean DOTA player out there who would be able to tell the difference between 500Hz and 1KHz polling rates on a 144Hz TN panel or even slower panel.Back in the day PS2 mice were perceived much better for FPS vs their USB 1.x counterparts.I think the major reason why USB 3 is not standard yet is because USB 3 hasn't been around long enough: plugging in a USB 3 keyboard in and booting to Windows 7 install you will find it doesn't work without integrating the (many different) USB3 driver(s) into the boot.wim