[Lowest price ever] 24 bay SAS2 SuperMicro 4U server w/ static rails

[JDM_WAAAT]

Check out this build guide:

[Guide] Direct Attached Storage (DAS) - Add up to 16 3.5" drive bays to an existing server for less than $300

Update Another good option for the large DAS is the NZXT Source 210, with 8 bays native. https://www.newegg.com/Product/Product.aspx?Item=N82E16811146077&cm_re=nzxt_source_210--11-146-077--Product Objective: Add up to 16 3.5" / 2.5" bays to an existing storage server, directly attached to the server through SAS->SATA connections. This allows for increased bandwidth compared to NAS solutions, and decreased complexity. In theory, you can add up to 16 drives for each x8 PCI-E slot available in y…

Happy to fill in any of the blanks.