Speaking from experience. New to both SATA and SCA-2 Ultra-320 SCSI.
The connectors on SATA, the cheap horrible little SATA plugs for your Hard-Drive show no outward concept of design quality or fabrication standardisation or indeed STRENGTH. There is a total lack of standardisation in comparison even with the old reliable but morbidly slow ATA (IDE) interface and it's 40 or 80-way parallel cable.
Well, some of the right-handed (
knee-bended) SATA connectors are just loose fitting and the straight ones may not allow the side-panel to close on your PC. If you force it, just a tiny bit, as I did, to accomodate it in the tight space, you'll easily fracture the super-weak SATA plastic retaiing stub on the Hard-Drive Proper. Then you'll be faced with having to retrieve it with tweezers from the SATA cable's lug and super-glue it back onto the HDD, now a weaker component and you'll have to use bandages or thick one-sided sticky tape to give strength to the whole damned thing.
Compare SATA PIA I/O calbes with SCSI SCA-2 'Hot-Swap' or even the 68-pin ribbon cable connectors, the latter which more resemble IDE in the design priniciple and you'll find reliability, design quality and most of all, - STRENGTH suitable for these to be used in multi-trerrabyte Servers with large numbers of RAID devices all vibrating away madly, producing loads of noise & heat. They won't break.
Put those weary little right-angle bend SATA I-III plugs, and I predict you'll have a whole load of HDD's mysteriously going off-line for no evident reason other than the SATA cable and Plug design is Crap.
The Cable too, I mention, because it's rigid, which a ribbon cable never has been in the past therefore manipulating it around your PC is going to put even more strain ont the previously mentioned SATA plugs, causing them to break even more prematurely.
1)
SATA Hardware Interface design = 'Null Point', for being rubbish and as weak as crazy-putty.2)
SCSI SCA-2 'Hot-Swap' and Caddies, 100 Points for being thoroughly dependable, and heavy duty.