I'm trying to get rid of some extra kit:
Fujitsu 10gig switch plus 5 Mellanox HBAs plus cables - eBay
This stuff was my storage network for a while, serving up FreeNAS storage to an ESX 5.5 cluster and a pair of SQL Servers running on Windows 2016.
Fujitsu XG2000C switch
5 Mellanox ConnectX HBAs
5 3-meter CX4 cables
FWIW: parted out and purchased separately, this kit will run you $650 at current eBay prices.