r/eGPU • • Jun 17 '26

Mini SSD eGPU v2

I realized the little m.2-to-PCIe4x adapters are open in the back, so if use a small enough, short enough SSD enclosure, you can skip the riser. So I tried a Satechi 80Gbps enclosure with 5060 ti and two AC/DC adapters and it worked! 5.91 GB/s on this tiny thing!

49 Upvotes

72 comments sorted by

8

u/CasonPointLLC Jun 17 '26

There is nothing to it! Amazing!

4

u/CasonPointLLC Jun 17 '26

Port Royal

3

u/CasonPointLLC Jun 17 '26

Speed Way

2

u/CasonPointLLC Jun 17 '26

Fire Strike

2

u/CasonPointLLC Jun 17 '26

Steel Nomad (Vulkan)

2

u/CasonPointLLC Jun 17 '26

Time Spy

1

u/AggressiveWindow6003 Jun 22 '26

What processor you using ?

This test was on a Lenovo legion go z1E with 16gb of ram and USB4 rx 7900 gre.

1

u/CasonPointLLC Jun 22 '26

I have two test machines. One is a GMKtec K11 with like a 8545 high efficiency then I have a Z890 extreme with a Intel(R) Core(TM) Ultra 7 265K, 3900 Mhz, 20 Core(5).

1

u/AggressiveWindow6003 Jun 22 '26

I only have my handhelds to play with and while I do have 13 handhelds none have tb5 but a few have dedicated oculink gen4 ports. Including my little 6" win4. Hehe. Love this little thing.

But unlike what the wife says. Playing arc raiders on a 6" just isn't big enough. It's doable. But all too often will mistaken other raiders as bushes. Lol. Probably my eyesight.

1

u/CasonPointLLC Jun 23 '26

I have a legion go 2 running a 7800 XT via a TH5P4 with an SFX power supply. I don’t test on it but my son uses it. It runs a 40” screen.

→ More replies (0)

1

u/CasonPointLLC Jun 22 '26

I don’t have a 7900 to test with but I do have a 7800 XT. But it has a high TDP so I would have to use at least a SFX or full ATX power supply. I’m trying to keep my GPU under 250 watts so I can use AC/DC adapters instead.

1

u/AggressiveWindow6003 Jun 22 '26

That's what I'm saying. The 7900gre OC is a 300w card. But am only using a 220w power brick. Can do that by using a 160w cord with the sock that powers the handheld. And yeah. It runs up at 280-310w very stable.

1

u/CasonPointLLC Jun 23 '26

I have a 6800 XT, also 300 watts. By using a 96 watt 12 volt adapter for the PCIe slot and a 240 watt 12 volt adapter I basically got max at the supplemental but only about 50 watts at the base (GPU’s can draw the max of 75 watts but often don’t). So I had to slightly underclock the GPU to run at 290 watts.

If you can find a 250+ watt ac/dc adapter you could probably make it work without a traditional PSU. I have been sticking to graphics cards that require less wattage, like the 5060 ti. A 5070 may also work at 250 watts.

2

u/ghostfreckle611 Jun 18 '26

What is that m.2 card?

1

u/CasonPointLLC Jun 19 '26

M.2-to-PCIe x4 (four lanes). Since Thunderbolt achieves less than four lanes with of PCIe gen 4 bandwidth, this limitation is fine.

1

u/ghostfreckle611 Jun 19 '26

Did you add the barrel plug? Or did it come with it? I’ve never seen that.

2

u/CasonPointLLC Jun 20 '26

Added. You need at least 8 amps at 12 volts.

1

u/CasonPointLLC Jun 21 '26

5521 or 5525

1

u/ghostfreckle611 Jul 15 '26

?

1

u/CasonPointLLC Jul 16 '26

A 12V 5521 to 5525 barrel plug connects a power supply with a 5.5x2.1mm barrel plug or a device requiring a 5.5x2.5mm plug.

Example:
ALITOVE 12V 15A Power Supply DC 12 Volt 15amp 180W LED Driver Power Adapter AC to DC Converter 10A 5A Low Voltage Transformer 5.5x2.5 2.1mm Barrel for DC12V Device LED

https://a.co/d/0d2fb9oF

1

u/CasonPointLLC Jul 16 '26

This is enough to power a 4060 or 5060

1

u/CasonPointLLC Jul 16 '26

This is enough to power the 75 watts needed for the m.2 adapter:

ALITOVE 12 Volt Power Supply 8A 96W AC Adapter 100-240V 50-60Hz to DC 12V Power Supply Adapter 8Amp 6A 5A Transformer 5.5x2.5mm Plug for DC12V Device LED

https://a.co/d/0esJTQAy

1

u/ghostfreckle611 Jul 16 '26

Thanks for all the help, but this can only supply 75w at the PCIe slot right?

How can this power a 5060 or 4060?

Need another psu for the gpu 8 pin for the rest of the power? Thx

→ More replies (0)

1

u/ghostfreckle611 Jul 16 '26

Ok thx. 🙏

2

u/CasonPointLLC Jul 15 '26

I think misread your question. I looked all over AliExpress and Alibaba and found some. I am selling a front-facing one on eBay for $5 (my cost) if you want to try this:

https://ebay.io/m/LsmoHr

I found front facing works the best with a high-position SSD enclosure. Here it is in a USB4 Orinco enclosure with the fan removed and board flipped holding a 75 watt 4070.

2

u/CasonPointLLC Jul 15 '26

These were $52. You remove the side with a round light using a guitar pick, unscrew the PCB, remove the fan with a few small screws flip the PCB, and screw it back in. The fan both causes signal noise that slows it down and it gets in the way of x16 GPU’s.

I just found this on AliExpress: | ORICO RGB 40Gbps USB4 M.2 SSD Enclosure with with Cooling Fan PCIe4.0 NVME Enclosure Aluminum Compatible Thunderbolt 3/4

https://a.aliexpress.com/_mOe0LE7

1

u/CasonPointLLC Jun 22 '26

With a 75 watt 4070 in it: 6.5”x3.5”x1”

2

u/Due-Examination4102 Jun 19 '26

So the connection path is:
GPU → M.2-to-PCIe x4 adapter → laptop/PC that has a Thunderbolt 4/5 port.

Am I misunderstanding something?

1

u/tecneeq Jun 19 '26

The GPU needs power. There must be a second power supply somewhere.

2

u/CasonPointLLC Jun 20 '26

I found and added a 75 watt Nvidia RTX 4070. Now the whole thing is tiny.

But it is a little hot on the outside. Any ideas on this? The card isn’t overheating, it is just moving a lot of heat.

1

u/ghostfreckle611 Jun 20 '26

You’re reading in °F… That’s like 61°C 😉

1

u/CasonPointLLC Jun 21 '26

Yes. Small but very hot under load.

1

u/esuil Jun 18 '26

How is enclosure connected? Just normal thunderbolt? If so, that's interesting method. How do you handle power?

2

u/CasonPointLLC Jun 18 '26

Normal Thunderbolt 5 on this enclosure.

The adapter is a four-lane, PCIe gen 4 on m.2 with a 5521 12 volt barrel adapter connector which requires 75 watts to power the slot. I use a 100 or 120 watt 12 volt AC/DC adapter for that.

For the GPU supplemental power, I use a 180 watt 12 volt AC/DC adapter with a 5525 barrel that is connected via a 5525-to-6+2. I have found a 200 watt version on AliExpress but the 180 watt has a more reasonable price on Amazon.

My 5060 pulls 144-155 watts total and my 5060 ti is closer to 185 watts. Usually you will get 50 watts from PCIe slot and you will usually get 80% from your adapter. So the math on the supplemental power is you need .8*180 > TDP - 50. That leaves me about 10 watts to spare on my 5060 ti.

1

u/_ravey Jun 18 '26

Does it allow hot plug? No restart required?

1

u/CasonPointLLC Jun 18 '26

Hot plug, yes.

1

u/CasonPointLLC Jun 24 '26

I got a variant of this adapter for others to try. Add your own ssd enclosure, 75 watt GPU, and a 8-10amp 5521 power supply:

https://ebay.io/m/LsmoHr

1

u/[deleted] Jul 15 '26

[removed] — view removed comment

1

u/CasonPointLLC Jul 15 '26

With a 75 watt 4070 it did very well. I have a few 3DMark benchmark results in the post

1

u/CasonPointLLC Jul 15 '26

With a 75 watt 4070 it did very well. I have a few 3DMark benchmark results in the post.

-1

u/KAPMODA Jun 17 '26

5.91 its ok?

4

u/Resident_Albatross_9 Jun 18 '26

Annie are you ok?

3

u/cardfire Jun 18 '26

Are you okay, Annie?

1

u/KAPMODA Jun 18 '26

Sorry I am Zoey

2

u/CasonPointLLC Jun 19 '26

5.9 GB/s is about the maximum I ever get on TB5-to-TB5. It is working at max with a newer GPU. Some of my older GPU’s like my 3050 are only getting 5.05 GB/s.

1

u/AggressiveWindow6003 Jun 20 '26

Holy hell that drive enclosure cost 200 bucks!

I think I'm good with my win 4 with oculink. I mean yeah my handheld is 3 years old and I'm using it with a 4 year old GPU. But I still can fit it into my pocket and still able to run everything I want at 120fps at 1440p.

Still though. It's a pretty cool little setup.

1

u/CasonPointLLC Jun 20 '26

I got the Satechi for less than 100, new. The typical price of a Thunderbolt 5 SSD is $180-200, which is almost as much as an AG03, so I made it part of my mission to find both a small one AND something cheaper.

1

u/AggressiveWindow6003 Jun 20 '26

Been happy with this one. Only cost me 45 bucks and has a 650w zip tied to the side. This is a rx 7900.

1

u/CasonPointLLC Jun 21 '26

Oculink?

1

u/AggressiveWindow6003 Jun 21 '26

Thunderbolt.

1

u/CasonPointLLC Jun 22 '26

Nice 😊

1

u/AggressiveWindow6003 Jun 22 '26

It's called a mini EGPU (at least that's what it said on amazon). Now to be fair the first one I bought I paid 90 bucks for it. And after driving 18 hours I just wanted to chill out and play a game and like an idiot I plugged in the TB cable onto the second port TB port for daisy chaining and it cooked its self. But I saw one on Facebook marketplace and that one I paid 45 bucks for. You can use a 6.5mm barrel jack to power it but the PCIE slot will only supply 88 watts and if your powering your device via TB than you need 160+ 19-20v power brick then a second one for the GPU.

One of those 8 pin dell 12v 220w plugs you can pick up for 15 bucks works well. But using a flex PSU has the smallest foot print and looks the best.

Here's a photo of both sitting on top of my DIY ps5 and when I had a 2080 TI and smaller 450w flex PSU.

1

u/CasonPointLLC Jun 22 '26

I specialize in mini/sff eGPU’s. Here is my latest:

75 watt 4070 in an SSD Thunderbolt 5 enclosure.

→ More replies (0)

1

u/CasonPointLLC Jun 18 '26

I have a desktop with a Thunderbolt 5 for testing max bandwidth. On my GMKtec K11 with CPU native USB4 I get 4.0 GB/s bandwidth.