You need the Adaptec 2400A. Here is one I prepared earlier; it has 128mb memory for fast caching. (Reads/Writes). It has 4 separate channels, so can handle 8 drives. You will use all 4 separate channels, one for each drive. You also need decent cables. Here are 4. I have some solid copper heat sinks and some nice fans that will fit.
This is the industry standard card. It is fully supported by XP professional natively. You will not need any drivers, or software. This is important, because Adaptec went down hill and then off a cliff after the host raid fiasco and the vast number of servers destroyed by Apple and Quick Time greed, even though the 2420SA and 2820SA were good cards.
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Here is what is left of the official website:
https://storage.microsemi.com/en-us/support/raid/ata_raid/aar-2400a/
These cards are available on ebay. I was surprised to see people selling these at realistic prices. Usually, I find people that run stores selling old computer equipment, haven’t got the slightest clue about industrial systems, talk non-stop dribble and eventually go bankrupt rather than sell at a reasonable price.
So, you might find it cheaper to order off ebay, than travel all round the M60 then up the M67 to me. You are apparently in Warrington; I am in Glossop. However, if you decide you feel like sitting in traffic for a couple of hours, then you can have all this kit for free.
I will send you my Mobile and Satellite number by private message.
Just one last note. The Only realistic alternative to this card is the LSI Logic IDE MegaRAID i4 Series 511. It is limited to 16mb of memory and is not upgradable.