4 ms·

> For reasons that remain hard to understand, the decision was made to retroactively rebrand USB 3.0: 5Gb/s 3.0 connections became "USB 3.1 Gen 1," with the 10G

by kanox 8y ago

> For reasons that remain hard to understand, the decision was made to retroactively rebrand USB 3.0: 5Gb/s 3.0 connections became "USB 3.1 Gen 1," with the 10Gb/s connections being "USB 3.1 Gen 2." The consumer branding is "SuperSpeed USB 10Gbps." Does anyone care about Gbps for USB? I've never hit the bandwith limitation on USB and see USB type-C as just an annoyance making me buy new cables. > And 20Gb/s devices will be... "USB 3.2 Gen 2×2. Pretty straight forward: USB 3.x supports 5 * 2^x Gbps. What we really need is MORE retrobranding! - USB 2.0 becomes USB 3-3.4 - USB 1.0 full speed becomes USB 3-8.7 - USB low speed becomes USB 3-11.7

mmanfrin 8y ago
> Does anyone care about Gbps for USB? I've never hit the bandwith limitation on USB You have if you've tried to used multiple external monitors over USB (a la macbooks).
- kanox 8y ago
  HDMI over USB sound like hardware abuse to me. All systems I've only ever owned had write_mostly interfaces for video display. Really, USB speed limits are mostly bound by flash memory limits so manufacturers struggle to justify a replacement. I guess faster charging is nice?
wlesieutre 8y ago
> Does anyone care about Gbps for USB? I've never hit the bandwith limitation on USB and see USB type-C as just an annoyance making me buy new cables. External SSDs are probably the only time it matters, or even multiple drives connected through a USB hub.
- josephg 8y ago
  You don't need an SSD to get benefit from the transfer speeds of USB3. Decent hard drives support linear read speeds of ~160MB/sec. USB2 will throttle that to 40MB/sec after protocol overheads. I've also run into this using external ethernet adapters, which I still want when I'm copying large files or streaming video via airplay or steam. My last 3 laptops were missing inbuilt ethernet ports. USB 2, while much faster than the wifi speeds available at the time, only supports half the bandwidth of gigabit ethernet.
  - wlesieutre 8y ago
    Do you need to go from 10 Gbps USB3 up to 20 for a hard disk?
vardump 8y ago
> Does anyone care about Gbps for USB? I've never hit the bandwith limitation on USB and see USB type-C as just an annoyance making me buy new cables. You haven't met new Windows (Dell, etc.) laptops yet? If you want multiple monitors with a single connector (there's often just one), it makes all the difference whether you can connect two 4k monitors @60 Hz or not.
- Dylan16807 8y ago
  But that's a capability on top of USB that isn't even implied by the Gbps branding.
  - vardump 8y ago
    Ah right, it's Thunderbolt. Dell is doing some weird things with it, like apparently transporting way more power than the standard allows. Shrug. Dell TB16 (thunderbolt) dock is not the nicest experience.

by kanox 8y ago

mmanfrin 8y ago

> Does anyone care about Gbps for USB? I've never hit the bandwith limitation on USB You have if you've tried to used multiple external monitors over USB (a la macbooks).

kanox 8y ago
HDMI over USB sound like hardware abuse to me. All systems I've only ever owned had write_mostly interfaces for video display. Really, USB speed limits are mostly bound by flash memory limits so manufacturers struggle to justify a replacement. I guess faster charging is nice?

wlesieutre 8y ago

> Does anyone care about Gbps for USB? I've never hit the bandwith limitation on USB and see USB type-C as just an annoyance making me buy new cables. External SSDs are probably the only time it matters, or even multiple drives connected through a USB hub.

josephg 8y ago
You don't need an SSD to get benefit from the transfer speeds of USB3. Decent hard drives support linear read speeds of ~160MB/sec. USB2 will throttle that to 40MB/sec after protocol overheads. I've also run into this using external ethernet adapters, which I still want when I'm copying large files or streaming video via airplay or steam. My last 3 laptops were missing inbuilt ethernet ports. USB 2, while much faster than the wifi speeds available at the time, only supports half the bandwidth of gigabit ethernet.
- wlesieutre 8y ago
  Do you need to go from 10 Gbps USB3 up to 20 for a hard disk?

vardump 8y ago

> Does anyone care about Gbps for USB? I've never hit the bandwith limitation on USB and see USB type-C as just an annoyance making me buy new cables. You haven't met new Windows (Dell, etc.) laptops yet? If you want multiple monitors with a single connector (there's often just one), it makes all the difference whether you can connect two 4k monitors @60 Hz or not.

Dylan16807 8y ago
But that's a capability on top of USB that isn't even implied by the Gbps branding.
- vardump 8y ago
  Ah right, it's Thunderbolt. Dell is doing some weird things with it, like apparently transporting way more power than the standard allows. Shrug. Dell TB16 (thunderbolt) dock is not the nicest experience.