Very belated update. Have been able to get a 5TB drive connected and functioning properly. Pretty sure that even larger drives will work, possibly up to 8TB. The key I believe is to get a drive enclosure that reports the drive's capacity in 4k sector sizes. When reporting 4K sectors, the total numbers of sectors remains below 2^32 which does not overflow fields in the MBR partitioning scheme. Here is the drive enclosure I purchased on Amazon that works well.
Thanks for confirming that the Sabrent enclosure works. I was looking at that one the other day on Amazon and was going to order it. Which model hard drive do you have installed? I was going to try a 3TB one. Maybe this one - Amazon product ASIN B008JJLW4M
I tried 2 different external hard drives from BestBuy last week but neither would work with my H3.
These DO NOT work.
http://www.bestbuy.com/site/seagate...lack/3137006.p?id=1219088032454&skuId=3137006
http://www.bestbuy.com/site/wd-my-b...lack/1765014.p?id=1219063232061&skuId=1765014