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49-port USB hub

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u_rebelscum:
Cool, but...


* Too much $$$
* 49?!?  A little too much for most people IMO, except lab or Q/A testing.  Maybe a 12 port hub at $60.  Or a 24 hub at $80.  But see next two.
* 49!?!  One (quality) thumbdrive can top out the USB 2.0 bandwidth or a single root host (at effect 30 MB/s; 480 Mb/s / 8 bits/byte * 1/2 dulplex = 60 MB/s / 2 = 30 MB).  30 MB/s divided by 49 results in ~0.6 MB/s per device (assuming even distribution, of course).  So adding 48 other devices to that same 480 Mbit/s max bandwidth won't speed things up in total throughput.
* 49 usb 2.0 and 1.1?  If you plug one 1.1 device in there, all others will drop to 1.1 speeds, or 1/40th the speed of usb 2.0.
So I'll pass.  But a USB 3.0 12 port hub, OTOH....  Even better, a 12 port, 3-4 virtual root host, usb 2.0 hub that talks to the computer over usb 3.0.

thecheat:

--- Quote from: u_rebelscum on August 31, 2009, 05:03:27 pm ---Cool, but...


* Too much $$$
* 49?!?  A little too much for most people IMO, except lab or Q/A testing.  Maybe a 12 port hub at $60.  Or a 24 hub at $80.  But see next two.
* 49!?!  One (quality) thumbdrive can top out the USB 2.0 bandwidth or a single root host (at effect 30 MB/s; 480 Mb/s / 8 bits/byte * 1/2 dulplex = 60 MB/s / 2 = 30 MB).  30 MB/s divided by 49 results in ~0.6 MB/s per device (assuming even distribution, of course).  So adding 48 other devices to that same 480 Mbit/s max bandwidth won't speed things up in total throughput.
* 49 usb 2.0 and 1.1?  If you plug one 1.1 device in there, all others will drop to 1.1 speeds, or 1/40th the speed of usb 2.0.
So I'll pass.  But a USB 3.0 12 port hub, OTOH....  Even better, a 12 port, 3-4 virtual root host, usb 2.0 hub that talks to the computer over usb 3.0.

--- End quote ---

You're taking it way too literally.

hypernova:

--- Quote from: drventure on August 31, 2009, 01:01:01 pm ---Yowza! That'd be great if it weren't 400... Doh, how do you make a pound sign on an US keyboard!? :dizzy:

--- End quote ---

#

:D

Malenko:
I think he meant £

hold ALT and press 0163 on your number pad

Ummon:

--- Quote from: thecheat on August 31, 2009, 05:45:21 pm ---
--- Quote from: u_rebelscum on August 31, 2009, 05:03:27 pm ---Cool, but...


* Too much $$$
* 49?!?  A little too much for most people IMO, except lab or Q/A testing.  Maybe a 12 port hub at $60.  Or a 24 hub at $80.  But see next two.
* 49!?!  One (quality) thumbdrive can top out the USB 2.0 bandwidth or a single root host (at effect 30 MB/s; 480 Mb/s / 8 bits/byte * 1/2 dulplex = 60 MB/s / 2 = 30 MB).  30 MB/s divided by 49 results in ~0.6 MB/s per device (assuming even distribution, of course).  So adding 48 other devices to that same 480 Mbit/s max bandwidth won't speed things up in total throughput.
* 49 usb 2.0 and 1.1?  If you plug one 1.1 device in there, all others will drop to 1.1 speeds, or 1/40th the speed of usb 2.0.
So I'll pass.  But a USB 3.0 12 port hub, OTOH....  Even better, a 12 port, 3-4 virtual root host, usb 2.0 hub that talks to the computer over usb 3.0.

--- End quote ---

You're taking it way too literally.

--- End quote ---

Not if that is a real, and sold, device.

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