Are there any <=500mm storage shelves (for 600mm cabinet) with lots of drives? I'm talking about those high density iSCSI shelves where drives are put in several rows to fit like 24 or 48 drives per 2U. Alternatively normal server chassis with plenty of drives would do just fine. I found this one:
Logic Case SC-H4-480 | 4U Standard Chassis 15 x 3.5" HDD - 480mm Short Depth
and this one:
Logic Case SC-39480G-ATX | 3U Standard Chassis 14 x 3.5" HDD
But while second one is pretty neat it's out of stock everywhere... Also tbh 14 drives per 3U is not really that great density. Not to mention 15 drives per 4U...
Logic Case SC-H4-480 | 4U Standard Chassis 15 x 3.5" HDD - 480mm Short Depth
and this one:
Logic Case SC-39480G-ATX | 3U Standard Chassis 14 x 3.5" HDD
But while second one is pretty neat it's out of stock everywhere... Also tbh 14 drives per 3U is not really that great density. Not to mention 15 drives per 4U...