The second sentence of the article:

> We have a number of these now and have been running our RDMA network backend for the 8x NVIDIA GB10 cluster for several months now, using one.

I have a friend who uses something similar for his 4 NVIDIA GDX Spark cluster.

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avidiax 2 hours ago | parent [-]

I see, so only if you are running an AI cluster. And what is it transferring between the nodes? Partial computations?

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ericd 2 hours ago | parent [-]

Essentially, yes. The DGX Sparks, at 128 gigs for ~$4700 are one of the cheapest ways to get enough high-ish speed memory cobbled together to run one of the more capable open weight models to run at home/for a small biz. This switch lets you combine the memory of 2-4 of them.

	▲	bitbckt 2 hours ago \| parent [-]
		4-8 of them. 2 Sparks can operate without a switch.