How much does this cost to the nearest dollar?

OWC ThunderBay 4 RAID Tower Black Disk Enclosure Case (Hard Drive, HDD, SSD, ATA II Series, ATA III Series, 0, 1, 1+0, 4, 5, 10, JBOD, 40 GB/s, Tour)
SSD Storage Solution with Dual Thunderbolt 3 Ports Up to sustained performance; Two Thunderbolt 3 ports Works with 3.5 or 2.5 drives — no adapter needed; Intelligent drive monitoring with desktop and email notifications User configurable in RAID 0, 1, 4, 5 & 1+0; Ultra quiet, heat dissipating aluminum chassis; Rigorously pre-tested with multi-hour burn-in Featuring SoftRAID XT, RAID-5 Pre-configured. Thunder

Price is $600.00
Price: $599.99