USB-C card for desktop

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Discussion

mikey_b

Original Poster:

2,064 posts

51 months

Sunday 27th November 2022
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Having worked in IT for 25 years I feel I really should know this, but it's been a long while since I was hands-on at a PC level...

I have on my desk at home an Inspiron 3471 PC which has two monitors attached. I also have on the same desk a Dell USB-C docking station, which I occasionally use for my work laptop. Since it's USB-C and the PC doesn't have a USB-C port, I also have to keep two mice, two keyboards and dual-cables to the monitors. It all works OK, but it's a faff changing between laptop and PC, what with moving keyboards around and switching inputs on the monitors.

The PC has a couple of PCI-e sockets spare, so if I buy a USB-C expansion card for the PC, will I be able to plug the docking station into the PC the same as I do with the laptop, and so be able to remove some of the duplicated accessories and cables from the desk? Am genuinely unsure if this would work or not - I can imagine keyboard and mouse working as it'll act like a USB hub, but not sure if the screens would.

I was looking at this one which seems to be decent spec and half-height, so should fit in the low profile case:
https://www.amazon.co.uk/StarTech-com-PCIe-USB-3-1...

Sporky

6,992 posts

70 months

Sunday 27th November 2022
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Why not a USB switch for the mouse and keyboard? Or a KVM switch for everything?

boxedin

1,399 posts

132 months

Sunday 27th November 2022
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I'd look for a better value card, for instance:
https://www.amazon.co.uk/Inateck-PCIe-RedComets-Po...

Mr Pointy

11,692 posts

165 months

Sunday 27th November 2022
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mikey_b

Original Poster:

2,064 posts

51 months

Sunday 27th November 2022
quotequote all
Sporky said:
Why not a USB switch for the mouse and keyboard? Or a KVM switch for everything?
USB switch is a good shout, it would reduce it to just changing input on the screens.

KVM would indeed be the ideal solution, but will be a challenge I think. Desktop machine has VGA and HDMI output, whereas the laptop (via the dock) has 2x DP cables. Which works OK with the screens both having multiple inputs, but looking around for KVMs they tend to be all one connector type.

I do have a third option, leave the laptop running and just RDP to it. That would give me the dual screens and just one keyboard/mouse, and no need for the dock either. Unfortunately my main use for it is to VPN in if Citrix is down for any reason, and with split-tunnelling disabled on the VPN software, that means RDP would drop as soon as I connected the VPN. So not really a solution.

e-honda

9,243 posts

152 months

Sunday 27th November 2022
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Why can't you use a usb-c female to usb-a male adapters?
Dell docks used to come with these attached to the cable so you could use either.
With usb-a you can't charge, display support is limited and network may not work, but keyboard and mouse should still be ok, it certainly is on the older docks.

annodomini2

6,901 posts

257 months

Sunday 27th November 2022
quotequote all
mikey_b said:
Having worked in IT for 25 years I feel I really should know this, but it's been a long while since I was hands-on at a PC level...

I have on my desk at home an Inspiron 3471 PC which has two monitors attached. I also have on the same desk a Dell USB-C docking station, which I occasionally use for my work laptop. Since it's USB-C and the PC doesn't have a USB-C port, I also have to keep two mice, two keyboards and dual-cables to the monitors. It all works OK, but it's a faff changing between laptop and PC, what with moving keyboards around and switching inputs on the monitors.

The PC has a couple of PCI-e sockets spare, so if I buy a USB-C expansion card for the PC, will I be able to plug the docking station into the PC the same as I do with the laptop, and so be able to remove some of the duplicated accessories and cables from the desk? Am genuinely unsure if this would work or not - I can imagine keyboard and mouse working as it'll act like a USB hub, but not sure if the screens would.

I was looking at this one which seems to be decent spec and half-height, so should fit in the low profile case:
https://www.amazon.co.uk/StarTech-com-PCIe-USB-3-1...
It's probably not just USB-C, but Thunderbolt.

So you would typically need a GPU with a Thunderbolt interface

Sporky

6,992 posts

70 months

Sunday 27th November 2022
quotequote all
mikey_b said:
USB switch is a good shout, it would reduce it to just changing input on the screens.

KVM would indeed be the ideal solution, but will be a challenge I think. Desktop machine has VGA and HDMI output, whereas the laptop (via the dock) has 2x DP cables. Which works OK with the screens both having multiple inputs, but looking around for KVMs they tend to be all one connector type.
New graphics card in the desktop?

My desktop is 2x DP, laptop is 1x HDMI and 1x DP, so I switch inputs on the monitors, but have a USB switch for keyboard, mouse, and scanner.

CorradoTDI

1,561 posts

177 months

Sunday 27th November 2022
quotequote all
Never thought of using a dock with a desktop!

I can't think why it wou;dn't work - is it the D6000 dock?

If so then install the displaylink drivers and try it via USB (with the inline adapter)

mikey_b

Original Poster:

2,064 posts

51 months

Monday 28th November 2022
quotequote all
CorradoTDI said:
Never thought of using a dock with a desktop!

I can't think why it wou;dn't work - is it the D6000 dock?

If so then install the displaylink drivers and try it via USB (with the inline adapter)
It's a WD-19. Not sure of the difference between them, but there doesn't seem to be a displaylink driver for it (which there is for the D6000).

CorradoTDI

1,561 posts

177 months

Monday 28th November 2022
quotequote all
mikey_b said:
CorradoTDI said:
Never thought of using a dock with a desktop!

I can't think why it wou;dn't work - is it the D6000 dock?

If so then install the displaylink drivers and try it via USB (with the inline adapter)
It's a WD-19. Not sure of the difference between them, but there doesn't seem to be a displaylink driver for it (which there is for the D6000).
Hmm - Yeah that one doesn't use DisplayLink technology and not sure if you need a driver at all?

I'd still give it a go tbh, it may depend on the desktop and if there is a dedicated graphics card etc for it to work with the screens but most screens have at least one other input too that could be used.

If you google WD19 with desktop there are a few people who have asked the same Q but I'd maybe just order a card and give it a go tbh...

Sporky

6,992 posts

70 months

Monday 28th November 2022
quotequote all
I thin - but am not certain - that the WD19 is basically a USB-C breakout box, so you need DP Alt mode on your USB-C to get video out of it.

e-honda

9,243 posts

152 months

Monday 28th November 2022
quotequote all
WD-19 I think is thunderbolt, or semi thunderbolt as I think there were some different versions with different levels of compatibility.
I don't think they support displaylink mode, only display port over usb-c (or thunderbolt 4 which is the same or atleast compatible), so with a usb-a adapter there is no display support, this will likely be the same for any usb-c card that isn't a graphics card.
But if it is just for keyboard and mouse then I still think a simple usb adapter would be the way to go.

8bit

4,973 posts

161 months

Monday 28th November 2022
quotequote all
mikey_b said:
Sporky said:
Why not a USB switch for the mouse and keyboard? Or a KVM switch for everything?
USB switch is a good shout, it would reduce it to just changing input on the screens.
This is what I do, bought one of these soon into lockdown in 2020 as I got fed up swapping my mouse and keyboard between my personal desktop system and company laptop - https://www.amazon.co.uk/gp/product/B07WMG6LB7/ref...

It's cheap and works well. Generally I leave the work laptop running 24x7 and when I switch on my own desktop it automatically switches to use that, then back to the laptop when I shut my desktop down again. There is a button to manually switch between the two. Unfortunately my monitor doesn't have auto-switching for the source so I still have to manually change that but that's first world problems really.

Sporky

6,992 posts

70 months

Monday 28th November 2022
quotequote all
I have one of these because I wanted the remote switch.

https://www.startech.com/en-gb/cards-adapters/hbs3...

Funk

26,510 posts

215 months

Monday 28th November 2022
quotequote all
If you can, check the PCIe slots too - I found some of mine won't support full-speed USB 3.x so might be worth making sure you can get the most out of whichever card you purchase.