Cheap InfiniBand setup between two PCs?

duplexmortician · May 10, 2019

Hello I have a two-pc setup where I game on one PC and record on the other one (in 4k 140mbps, so the files are pretty big). I want to improve on the 1gbps I get over normal ethernet because transferring the files from the recording PC back to the gamer (gamer is more powerful rig for editing too). One of the PCs has a 10GbE motherboard (Gigabyte x399 Aorus Extreme) and I was just going to upgrade the other one with a 10GbE NIC or switching to a MB with it built in, and then just directly connect them with a crossover cable. But then I heard about Infiniband NICs that you can supposedly get for $30 for 40GbE speeds. Anybody done this? Again, I don't want or need (I hope) a switch since I plan to directly connect them.

Also, is there any way to directly connect two PCs over USB-C?

Firewrath9 · May 10, 2019

I'd reccommend getting a TB3 NVMe enclosure, copy to, then walk over and copy from.

you could potientially transfer 1TB in less than 10-15 minutes (300 seconds @ 3GB/s)

or usb-C external SATA, an hour for a TB.

duplexmortician · May 10, 2019

13 minutes ago, Firewrath9 said:

I'd reccommend getting a TB3 NVMe enclosure, copy to, then walk over and copy from.

you could potientially transfer 1TB in less than 10-15 minutes (300 seconds @ 3GB/s)

or usb-C external SATA, an hour for a TB.

That sounds high in spend and high in hassle. I'm talking about two of these cards connected with a $30 cable for 40GbE speeds and no moving sneakernet gear around.

https://www.ebay.com/itm/Mellanox-MHQH19B-XTR-Single-Port-40Gb-s-QDR-PCIe-Gen2-5-0-GTs-VPI-Adapter/303139813218