pcie to usb adapters possible?

[TheBean]

Is it possible to adapt a usb-c 3.1gen 2 into a pcie slot? I wanted to connect some devices to my laptop but they are a pcie x4 device. 

I know that there are bandwith limitations but I won't be exeeding 5Gbps which is well under the usb 3.1 gen 2 limitations. 

 

Basically, is there a cable which has usbc male on one end and pcie 3.0x4 on the other end. 

[Windows7ge]

Nope. They do appear to both use Serial communication but I can safely say there is no direct adapter. You would need a USB controller between the slot and the USB device.

[TheBean]

Edit:https://www.ebay.com/itm/352240749164

I found this ^^

not sure if these are real or not. 

 

Edit 2: as well as this https://www.ebay.com/itm/113757555732

[Windows7ge]

1 minute ago, Saksham said:

Edit:https://www.ebay.com/itm/352240749164

I found this ^^

not sure if these are real or not. 

Oh, you're asking about a USB riser cable. Those are real yes.

 

I haven't seen them in USB-C yet though and it doesn't have enough pins for PCI_ex4. Your devices would be stuck at x1. Also probably gen 3 as I these aren't tested for gen 4 speeds.

[Moonzy]

3 minutes ago, Windows7ge said:

lso probably gen 3

I have a couple of these and they sometimes refuse to post in gen 3 speed, have to lower to gen 2

 

As for x4 riser, try looking at m.2 to full size pcie, I've not seen USB riser for full size pcie slot above X1, but there's a couple m.2 converter out there

[TheBean]

@Windows7ge @Moonzy would it be possible to use one of those usbc to nvme adapters, then use another adapter to convert that nvme into pcie?

[Moonzy]

Just now, Saksham said:

@Windows7ge @Moonzy would it be possible to use one of those usbc to nvme adapters, then use another adapter to convert that nvme into pcie?

Now that I reread your post, I understood what you want

 

It sounds very clunky but it might work

But depends on a couple things:

1) you definitely won't get 40gbps over any current USB standard

2) the signal strength might not be strong enough to travel through the extension/riser

3) you might not have enough power to power your device through the riser

 

What device is it actually

[Moonzy]

Also note that the USB riser you've shown does not operate on the USB protocol

They merely use the wiring in USB to transmit PCIe signals

[TheBean]

1 minute ago, Moonzy said:

Now that I reread your post, I understood what you want

 

It sounds very clunky but it might work

But depends on a couple things:

1) you definitely won't get 40gbps over any current USB standard

2) the signal strength might not be strong enough to travel through the extension/riser

3) you might not have enough power to power your device through the riser

 

What device is it actually

I wanted to connect 2 nvme SSDs but I only wanted to use a single connector. I have seen a couple of docks on a few websites, but they go for $150++.

 

[Moonzy]

9 minutes ago, Saksham said:

I wanted to connect 2 nvme SSDs but I only wanted to use a single connector. I have seen a couple of docks on a few websites, but they go for $150++.

 

They're probably powered and it's a niche product hence the price

 

I'd rather buy USB to m.2 nvme SSD enclosures, and use a powered usb type c hub

 

How much would this solution cost?

 

Edit: if your type c have high power delivery capability, unpowered is fine

Those chewing gum sticks draws 15W at most

But might strain your laptop's USB port power delivery

[TheBean]

2 minutes ago, Moonzy said:

They're probably powered and it's a niche product hence the price

 

I'd rather buy USB to m.2 nvme SSD enclosures, and use a powered usb type c hub

 

How much would this solution cost?

nvme to usb (x2) will cost $23. then add the usb hub (usb 3.1) so another $30 = ~$55 which is decent I guess. 

[Moonzy]

1 minute ago, Saksham said:

nvme to usb (x2) will cost $23. then add the usb hub (usb 3.1) so another $30 = ~$55 which is decent I guess. 

Do take note of the converted USB standards as it'll be limited by the slowest one

[Windows7ge]

1 hour ago, Saksham said:

@Windows7ge @Moonzy would it be possible to use one of those usbc to nvme adapters, then use another adapter to convert that nvme into pcie?

In theory that should work. Rather crude and definitely bandwidth limited but it should work. Depending on what you want to connect though you might end up needing auxiliary power.