Dear Valued Customer, Re: Volume Discount 3C900-Combo refurbished / 1000pcs / usd8.5- 3C16704 4-ports refurbished / 1000pcs / usd25- 3C16592A 12-ports 10/100 brand new / 500pcs / usd150- 3C3594 PCI 56K V.90 Voice brand new / 10000pcs / pls check Best Regards Alex Wong Cleverway