Hi Gunther,
Its a mixed bad, the 2tb disks are an old type, only about 120 meg/sec, the 1tb disk is a bit later and faster, about 150 meg/sec and the SSD is about 110 meg/sec while a modern SATA SSD is about 550 meg/sec. Done OK on cables, I have plenty and only use new ones in an important box but got a decent collection of a type that is hard to get, mainly used with some internal USB hardware.
This is mainly distraction, I am waiting on a new can so I can finish a computer strewn all over a table in bits which will probably be the last X99 box I build. I have been able to retire 2 much older boxes, an i7 860 from about 2008 and an earlier XP box that I built in about 2006 that I hardly ever used as I replaced it with a Win7 64 box.
These supply chain delays nearly drive me nuts, until the covid crap started, you could just go and buy a pile of bits, screw them all together and you got a working box in a couple of days. With this one I am building, the board took 6 weeks from China, I had to wait about the same for an internal USB3 expansion board and the new can won't be in OZ until early June.