You cannot add "Cisco Small Business SF110D-16 - Switch - unmanaged - 16 x 10/100 - desktop, wall-mountable" to the basket because the product is out of stock.
Cisco Business 350 Series 350-48T-4X – Switch – L3 – Managed – 48 x 10/100/1000 + 4 x 10 Gigabit SFP+ – rack-mountable