How much does this cost to the nearest dollar?

Sedna PCI Express (PCIe) Dual 2.5 Inch SATA III (6G) SSD Adapter (Extended Single Side SSD Version) (with Built in Power Circuit, no Need SATA Power Connector, Best for Mac), SSD/HDD not Included
Features Direct mounting of two 2.5 SATA III SSd / Hdd on board (SSD not included) Operating System Software can be installed on mounted SSD and booting of the OS from the installed PCIE disk is supported (Your mother board BIOS need to support this feature) Using standard low cost high perfermance 2.5 SSD instead of the much more expansive mSATA SSD Built in Power circuit, no power connection required. Best for PC / MAC where no extra power connection available Can be used for

Price is $53.00
Price: $52.9