Things I don't like about the GVP A530:
You need to get rid of the GVP SCSI Rom and get a GuruRom v6+ in order to get any decent SCSI performance and compatibility with newer (larger) drives and AmigaOS 3.9.
The GuruRom for A530 is not the same as the one for A2000 GVP cards. If you use the A2000 GuruRom (more common) version, you can't close the A530 case as the A2000 version is too tall. The A530 version is very rare. The actual rom dump is freeware nowadays (thanks Ralph!) :-), however the PCB that hosts the eprom is a custom made piece, thus we still have a problem. :-(
The on-board memory of A530 is 8MB ram maximum and yes, it's the good ole' GVP custom made ram. :-(
The SCSI termination on the GVP A530 is passive and the termination resistors are soldered to the board (for your convenience) :-( and you need to desolder them or break them off in order to be able to get any decent active termination for your chain.
To summarize, good effort by the GVP guys, but too bad that Viper 530 is so damn rare and expensive. :-)
@Karlos:
Yes it is, however you need to update the firmware to GuruRom if you want any decent SCSI performance with more modern/larger drives.