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Notable that these are 3.0x8 cards, so you can run them without a bottleneck on a 3.0x4 link. Useful for desktop platforms or any other place you only have a x4 slot available.

Sonnet's Alegro Pro USB-C card does this. Eight total USB-C ports with four separate controllers connected through a x8 PCIe bridge. The product page explicitly advertises support for the scenario you're describing, too (four VMs each with a controller passed through). Quite pricy, though.

If every system has Thunderbolt, which it sounds like they might, the Caldigit Element Hub is what you want. 4 USB-A, 4 USB-C, power delivery.

For shipping, a decent option can be using a proxy like Zenmarket. Zenmarket will consolidate up to 30 days of orders into a single box for free, which usually yields savings over separate shipping (especially if you're willing to use surface transport). I bought a lot of video game hardware a...

If you need native Thunderbolt storage the OWC Express 4M2 might be a good option. I’d be interested to see if IP over Thunderbolt performs differently/better than PCIe over Thunderbolt, though, especially in the 20Gbps and up range. Might not be possible to test that with this hardware, though...

Gotcha, thanks! Must have mixed up the AMD generation numbering scheme and the Intel one.

Out of curiosity, does anyone know if these support Octane DIMMs? Could be an interesting option for playing around with those on the cheap.

For the RMS-200, do standard LSI full-height brackets work?

If you're running cables through walls, you probably want to go with OS2 single-mode duplex LC-to-LC fiber. Single mode fiber is the most adaptable format out there, and can carry signals up into the 400 Gigabit range over simple duplex cables. Multimode fiber requires cables with more fibers to...

I think you're looking at the X710-based card. The specs for this one quote 20.16 W in SR mode. DACs would likely push it lower, but probably not south of 15W.

I don't think they'd physically fit (too long), but thermals would also probably be a challenge. I think these have two Intel 82599ES controllers and a PCIe switch onboard, so the whole card is dissipating something like 20W at full tilt. The heatsink's there for a reason.

The wrinkle with macOS is that it's sorta a choice between 1x and 2x. There isn't actual intermediate UI scaling, so if you want to run a 4K panel at 2560x1440 effective it's actually rendering a 5K image and scaling it to the 4K display, which makes things a bit fuzzy. It's fine for most uses...

If you're using a Mac, these are also particularly desirable because they're in the 100-120 PPI range you need for proper 1x scaling. Nearly all monitors of this size are 4K, which is in the 120-200 PPI no man's land where 1x is too small and 2x is too big. These weren't available when I was...

You can do that, but it's a bit more complicated. You'd end up with a Local Area Network/Storage Area Network (LAN/SAN) setup. The big thing you'd need to remember is that you need to do different IP ranges for both. To keep it simple I'd use something like a subnet of 10.0.0.0/8 for the LAN...

If you're only concerned about access between the devices and the internet, it'll be fine and will give you access to greater-than-1G speeds to the internet. You'd just put every port on a different subnet, which might be desirable for isolating things. If you're routing between devices you'll...

It's not fully enclosed, but I use a 1x4 Ikea Kallax unit for this in my Chicago apartment. You're stuck with front-to-back airflow and have to manage cables, but there are an assortment of inserts you can hack to do things like conceal a power strip in the bottom cubby. They do come with wall...

This question always gets muddled because there's two points competing: ZFS does not uniquely require ECC more than any other filesystem; the "scrub of death" scenario is basically bunk. Generally speaking, people who run ZFS and deal with its quirks (especially around expansion) are very...

I believe they're using their U.2 shuttle. Apparently it uses a ASM2812 PCIe switch, so it's indeed 4x2. it's a nice package, but the shuttles are a substantial additional expense.

Any of these options are just passive adapters. It'd be useful if you could share what speeds you're getting--it's possible that the problem is that the drives are just connecting over PCIe 3.0 instead of 4.0 (in that case the drives will hit a bit less than 4 GB/s). If that's the case it might...

Yeah, I think this is basically an impossible problem to solve. The Great Deals section is naturally going to be mostly things that are under market price, and I don't think I've seen anything here that couldn't be found just as quickly with a few carefully-constructed saved searches. That's a...