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Author Topic: [WTB] True 7-port USB hub  (Read 1531 times)
Luke-Jr
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October 16, 2012, 08:56:00 PM
 #1

Many (most?) 7-port USB hubs on the market seem to be made up of two 4-port controller chips internally (with the 4th port on the 1st controller connected to the upstream port on the 2nd). Since USB has a 5-hub chain limit, this adds up fast. I'm looking for a 7-port USB hub that is built on a true 7-port USB controller chip. Unfortunately, I haven't managed to find out which those are.

As far as I know, the only controller chips that support true 7 ports downstream are:
  • SMSC USB2507
  • SMSC USB2517
  • TI TUSB2077A
  • REA uPD720113

I presume such a USB hub will also appear to the computer (lsusb on Linux, at least) as a single USB hub, and dual-4-ports as two USB hubs.

Information is welcome (eg, models that are true 7-port hubs), as well as offers to sell such a hub.

Bonus for something I can use for charging, and/or working per-port power switching (this lets your computer turn each port on/off).

Thanks,

Luke

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Luke-Jr
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October 17, 2012, 02:14:23 PM
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Here's some lsusb that seem to be relevant:
Code:
0408:0907 Quanta Computer, Inc.
0409:0050 NEC Corp.
041e:3051 Creative Technology, Ltd (compound)
0424:2507 Standard Microsystems Corp.
0451:1446 Texas Instruments, Inc. TUSB2040/2070 Hub
0451:2077 Texas Instruments, Inc. TUSB2077 Hub
04cc:1521 Philips Semiconductors USB 2.0 Hub (no PPPS)
050d:0237 Belkin Components
050d:0307 Belkin Components (no PPPS)
1a40:0201 TERMINUS TECHNOLOGY INC. (no PPPS)
1a40:0201 Terminus Technology Inc. FE 2.1 7-port Hub (no PPPS)
2001:f103 D-Link Corp. [hex]
2001:f103 D-Link Corp. DUB-H7 7-port USB 2.0 hub
2001:f103 D-Link Corp. DUB-H7 7-port USB 2.0 hub

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