How much does this cost to the nearest dollar?

iXsystems TrueNAS Mini Write Cache (ZIL) Upgrade
Write Cache (SLOG) upgrade to increase the performance for your TrueNAS Mini. Boost write performance and reliability on your TrueNAS Mini with a dedicated ZFS Intent Log (SLOG) device. Take advantage of TrueNAS’s advanced algorithms to hold critical data waiting to be written in the SLOG until confirmation of a successful write is received. Never lose data waiting to be written to ZFS, even in the event of power loss. Hardware tested and qualified by the developers of TrueNAS. Brand iXsystems, Weight 8 Ounces, Dimensions 10.9 x 2.9 x 8.2 inches, Dimensions LxWxH 10.9 x 2.9 x 8

Price is $160.00
Price: $160