HP StorageWorks MSA70 $300
Modular Smart Array
Direct Attached Storage Enclosure 
3Gb/ps
Support 2.5" Hard Drives
Support SAS , SSD and SATA HDD
Support up to 25Tb Storage 25 X 1Tb 
25 X 2.5" Hard Drive Bays
all 25 Trays are included
NO Hard Drive is included
2 X Redundant Power Supplies
3U Rackmount Size

Railings not included 
More Specs: https://www.sillworks.com/pdf/storage_options/MSA70.pdf
You can test this unit when buying
3 Months Hardware Replacement Warranty 
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Hard Drive and other Options for this Storage : 
External SAS Cable $30each
HP P212 Controller Card $100each
Add 120Gb SSD Drive $70each
Add 240GB SSD Drive $120each
Add 500Gb SSD Drive $220each
​Add 1Tb SSD Drive $440each
Add 300Gb 10K SAS 2.5" HDD $70each
Add 600Gb 10K SAS 2.5" HDD $120each
Add 900Gb 10K SAS 2.5" HDD $200each
Add 500Gb 7.2K SATA 2.5" HDD $60each
Add 1Tb 7.2K SATA 2.5" HDD $150each
Railings $100
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