The iHOS104 is 32x for CD, 8x for DVD, and 4x for BD according to Lite-On's specs:
It does not support Blu-ray discs with more than two layers.
The product has been discontinued and has reached its End-of-Life from the manufacturer's perspective. You almost certainly won't find new ones sold in normal stores ("on the market" as Tester_1 said). However, that shouldn't stop you from buying a used or new one from eBay, Amazon, or somewhere else if you really want one. Lots of iHOS104 drives were sold on eBay in recent months.
I bought a used one last year since it's one of the few Blu-ray drives that were sold with an optional silver bezel. Since most sellers of used drives lost or discarded the silver bezel long ago you'll find that most or all of the drives currently for sale only have black bezels.