Cisco GLC-SX-MM Compatible 1000BASE-SX SFP 850nm 550m DOM Duplex LC MMF Transceiver Module US$ 7.00
3ft (0.9m) Cat6 Snagless Unshielded (UTP) PVC CM Slim Ethernet Network Patch Cable, Blue US$ 3.40
10GBASE-SR SFP+ 850nm 300m DOM Duplex LC MMF Transceiver Module for FS Switches US$ 20.00
S3900-24T4S, 24-Port Gigabit Ethernet L2+ Switch, 24 x Gigabit RJ45, with 4 x 10Gb SFP+ Uplinks, Stackable Switch, Broadcom Chip, Fanless US$ 329.00
1m (3ft) LC UPC to LC UPC Duplex OM2 Multimode PVC (OFNR) 2.0mm Fiber Optic Patch Cable US$ 4.70
S3900-24F4S, 20-Port Gigabit Ethernet L2+ Switch, 20 x 1Gb SFP, 4 x Gigabit Combo, with 4 x 10Gb SFP+ Uplinks, Stackable Switch, Broadcom Chip US$ 479.00
S3700-24T4F, 24-Port Gigabit Ethernet L2+ Switch, 24 x Gigabit RJ45, with 4 x 1Gb SFP, Fanless US$ 209.00
Passing Ixia RFC2544 performance test is one of the basic requirements of FS switches, and here's a connection scene of S3900-24T4F, S3900-24F4S and S3900-48T4S with Ixia XGS2.