I went with Sipeed NanoKVM (PCIe) units across my homelab as well and I've also been happy with them. For a while it's been the best value option (not to mention the most consistently available option) cf. GL.iNet, PiKVM, and JetKVM. The PoE versions are great in a rack and the integrated ATX control is fully-featured (including the little power switch icon in the web UI turning green when the system is powered on). I set up an isolated OoBM VLAN with no Internet access and any switch ports assigned to it are isolated by default as well.
The memory controller is integrated into the CPU, so the motherboard chipset is irrelevant. There are some OEM-only v3/v4 parts with dual memory controllers, but the E5-2620 v4 is not one of them.
There are some OEM-only v3/v4 parts with dual memory controllers (because of a RAM supply crunch at the time, funnily enough), but the E5-2620 v4 is not one of them. The classic example is the very popular 12-core E5-2678 v3.
They've been stable for me but I'd be lying if I said I'd only heard good things.
Looks like prices on the E810-XXVDA2 have come up since the last time I looked while prices on the ConnectX-6 Lx have come down, so that'd be a good option!
> Nowadays I'm not actually sure if DACs are cheaper than fibre now
Yep still are, although fiber transceivers are surprisingly affordable, and of course you can usually re-use jumpers when you upgrade transceivers so TCO over a couple generations might be comparable.
> I'm getting a really bad taste in my mouth for 10GBASE-T RJ45 SFP+ modules mostly due to the god awful heat they pump out
It's truly bananas especially in a homelab environment. Nearly every time I've thought to myself "oh I can just do a copper gbic for this" it's been the wrong thing to do.
If you start doing bonded links with DACs or if you have a bunch of servers, the cable management situation gets ugly in a hurry, and the usual solutions like patch panels and keystones aren't applicable. Source: my basement
I've started buying E810s even for 10G links. PCIe Gen4, lower power draw, RDMA support, generally backward-compatible with SFP+ DACs and transceivers, and relatively inexpensive. Not nearly as dirt-cheap as the X520s but not crazy expensive (last I looked, at least). As I gradually replace switches over the next few years I can start taking advantage of 25G.
I use UniFi for most of my home network so It Just Works™, but I've thought about mixing in Mikrotik for e.g. the compute rack so I can play around with 100G+ links and more esoteric stuff like VXLAN.
I've started buying Intel E810s for most purposes, even for 10G links. (SFP28 ports are generally backward-compatible with SFP+ DACs and transceivers.) The ones you can get on eBay for cheap typically run Dell firmware but it's serviceable. An E810-XXVDA2 is Gen4 x8; as long as the host slot can physically accept the card connector you only need Gen4 x1 electrical for a single 10G link or Gen4 x2 for dual 10G or single 25G.
My homelab has a 10G fabric (switched) for NFS, iSCSI, NVMe-OF, etc. and a 25G fabric (a mix of back-to-back and switched) for clustering (Ceph, DRDB, ZFS replication, migrating VMs).
I spun up some iSCSI-backed SQL Server a few months ago and 10G couldn't keep up with the workload, so I dropped in a pair of 100G ConnectX-4 cards with iSER (iSCSI Extensions for RDMA) support for that particular use-case.
Just because your uplink is less than 10G doesn't mean the rest of your network can't be a bit more capable. :)
Yes, I want these for my kids so very badly. They have Yotos (similar to Tonie) for bedtime, and iPads for school work, but those are not ideal for a number of reasons. I want them to be able to experience music like I was able to with an FM+cassette walkman clone in the '80s and early '90s, or with my Nomads and iPods in the late '90s and early aughts. Hopefully someone here can suggest something!
ETA: OK, there are quite a few highly-rated options on Amazon, so I just need to solve the "putting music on there" problem and the "dropping it and immediately destroying it problem".
Unfortunately you had to run Windows NT, which was a leap for most folks and had poor support for games and some other software written for Windows 9x (e.g. software that required DOS mode and wasn't compatible with NTVDM). Windows 2000 (Pro) was a bit more approachable, and then of course Windows XP (Pro) smoothed out most of the remaining wrinkles.
I ran Slackware on my BP6 while I was in college. Of course CONFIG_SMP wasn't set in the default kernel config at the time so you had to build your own. Great for running bind, apache, sendmail, etc., and of course NetQuake servers. :)