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T420 ESATA and Dock question
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- Senior ThinkPadder
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T420 ESATA and Dock question
When docked in the Mini Dock does the Dock's ESATA w/o USB disable the laptop's built in ESATA w/ USB (T420) or ESATA w/o USB (T410) port?
Re: T420 ESATA and Dock question
No.
Thinkpad 25 (20K7), T490 (20N3), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
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- Senior ThinkPadder
- Posts: 2202
- Joined: Thu Jul 30, 2015 11:29 pm
- Location: Boston, Massachusetts
Powered USB and 3.5" Drive question
Is the powered (yellow) USB port on the Thinkpad powerful enough for a 3.5" drive? I would use the split cable with separate ESATA Data and Power plugs. Data into the ESATA port on either laptop or the dock, and Power into the Laptop's yellow USB.
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- Senior Member
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Re: T420 ESATA and Dock question
What does the voltage on USB standard is? The powered eSATA is thus based on USB contacts with different contacts for eSATA and this means 5V only. 3.5" HD drives requires both 5V and 12V. Stick to 2.5" boxes or external power the 3.5" drive with required voltages. Yellow USB on thinkpads is powered optionally set in bios when computer is off or in standby.
Cheers, thinkpadcollection
Cheers, thinkpadcollection
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- Senior ThinkPadder
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- Joined: Thu Jul 30, 2015 11:29 pm
- Location: Boston, Massachusetts
Re: T420 ESATA and Dock question
All the ports can be set to "Always On" with power, but the Yellow USB port can be used for charging phones faster than normal USB.
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