DELOCK 90777 too good to be true?

Has anyone looked at the DELOCK 90777 yet?

PCIe v4 x16 to 4x U.2 NVMe SFF-8643 for about 50 euro? The math seems to check out, PCIe v4 x16 at about 32GB/s giving 16 SAS/SATA lanes. Am I missing something?

Welcome.

It’s just a passive PCIe bifurcation adapter, so you won’t be able to do SAS and probably not SATA (some processors can do SATA on specific ports).

There are better designed adapters on aliexpress for less than half the price.

any recommendations?

Just to clarify - this device requires bifurcation from the motherboard side, it does not automagically turn an x16 into x4/x4/x4/x4. And it’s definitely not for sas/sata, but literally for 4 u.2 drives

So yeah that was what I was missing, I figured I would simply slap some converter cables on it

Depends what you are looking for; if you want a “cheap” SAS card I’d recommend a LSI 9305 or 9306, they are about the same price as the 90777.

Theres a big sell off of 9306’s happening right now so you can get 24 port cards for cheap, but they use the newer sff-8654 cabling over the older sff-8643 cables.

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For my new home server I want to hook up 8 or 10 x 16TB drives in a ZFS raidz2 setup and optionally add a second similar size pool later on. The IO is fairly low so it’s mainly connectivity I’m looking for. It’ll mainly be used for Nextcloud with max 4 or 5 users and somewhere to put my Linux ISOs.

I think a 9306-24i would probably be a pretty good fit, they are like 60-70 right now compared to the 9305-24i’s ~180 price (it’s the 9305-16i’s that are ~70).

The card would need to actively be cooled, but luckily it’s easy to 3d print a little shroud that goes over it. Here’s a model that attaches to the card and take a commodity GDB5410 fan:
9306-24i baffle v3b.zip (218.4 KB)

Awesome, thanks! I’m going to look into it and see what I can get here (in the EU)