You found 41 products in Networking Hubs and Switches - 4 and Less

Nortel (DS1404065-E5) 1-Port Modular Chassis (DS1404065E5)
Layer 2/3 Managed Modular Chassis, 1 x 10Base-T/100Base-TX (RJ-45), 1 x 10Base-T/100Base-TX (RJ-45), Switch Fabric 720 Gbps
3 store offers from £9149 - £9715

3Com 8800 1-Port Switching Module (3C17539)
Layer 2/3 Managed Switching Module, 1 x 10Base-T/100Base-TX (RJ-45), Switch Fabric 720 Gbps
2 store offers from £11537 - £12476

D-link DES-6512 2-Port Switching Module (DES6512)
Layer 2/3 Switching Module, 2 x 10Base-T (RJ-45)
2 store offers from £2639 - £3571

Hewlett Packard Catalyst 3120X 4-Port Gigabit Ethernet Switch (451439-B21)
Layer 2 Unmanaged Ethernet Switch, 4 x 10/100/1000Base-T (RJ-45), 2 x 10GBase-X2, 4 x SFP/1000Base-T Combo, Switch Fabric 128 Gbps
1 store offer at £7510

Huawei Technologies LS8M1SRPG 4-Port Switching Module
Switching Module, 4 x SFP
1 store offer at £4351

Cisco ME 3400G-2CS AC 2-Port Gigabit Ethernet Switch (ME3400G2CSA)
Layer 2/3 Managed Ethernet Switch, 2 x SFP, 2 x SFP/1000Base-T Combo, 4 x GBIC, Switch Fabric 8 Gbps
1 store offer at £684

D-link (DEM-420CX) 2-Port 10Gb Switching Module (DEM420CX)
Layer 2/3 Switching Module, 2 x 10GBase-CX4
1 store offer at £999

Cisco WS-C3550-12G 2-Port Ethernet Switch (WSC355012G)
Layer 2/3 Managed Ethernet Switch, 2 x 10Base-T/100Base-TX (RJ-45), 2 x 1000Base-T (RJ-45), Switch Fabric 24 Gbps
1 store offer at £3231

Hewlett Packard (A7533A) 4-Port Gigabit Fibre Channel Switch
Managed Fibre Channel Switch, 4 x GBIC, Switch Fabric 64 Gbps
2 store offers from £3878 - £4227

D-link DGS-3312SR 4-Port Gigabit Ethernet Switch (911488)
Layer 2/3 Managed Ethernet Switch, 4 x 10/100/1000Base-T (RJ-45), 4 x SFP/1000Base-T Combo
2 store offers from £861 - £863