Good morning, everyone. I don't have much experience or knowledge in the world of RAID arrays, and I recently had a power surge that burned my NAS. I have an Intel SS4200-E NAS box with 4 1TB drives set up in a RAID-5. It was running fine, and, having experienced a drive failure event due to my careless handling of the power cord, proved to me its ability to rebuild a drive from the other three. Unfortunately, a recent power surge literally burned the box. I've taken it in to get analyzed by some HDD repair & recovery people, but I have no frame of reference for this. Story is thus: After the surge, I was able to login to the dashboard app of the box via my network. It reported all drives as failed, and provided no further information. The repair guy is saying that 2 of the 4 drives are fine, while the other 2 have electronic/mechanical failures; in addition, the RAID chip on the NAS box was fried. Those three things have to be repaired in order to even begin drive rebuilding. His quote for repair & recovery was in the vicinity of $3,000. My first question is whether or not this is a reasonable price. My second pertains to the Parity structure of the RAID setup. Because the system can lose 1 out of 4 drives and still retain data integrity, is it possible to only repair one of my failed drives and rebuild with those three? I'm thinking that would bring the cost down. And realistically, what percentage of data am I likely to recover? I'd appreciate some help on this, as I'm completely in the dark about all of this. Thanks!