You found 38 products in Networking Hubs and Switches - 4 and Less

NetGear XE104 4-Port Serial Switch (00606449041217)
Layer 2 Serial Switch, 4 x 10Base-T/100Base-TX (RJ-45)
3 store offers from £47 - £61

Hewlett Packard MDS 9124e 4-Port Gigabit Fibre Channel Switch (AG641A)
Fibre Channel Switch, 4 x SFP
2 store offers from £3342 - £3510

3Com 4500G (3C17766) 2-Port 10Gb Switching Module
Layer 2/3 Managed Switching Module, 2 x 10GBase-T, 2 x XFP
2 store offers from £1372 - £1627

3Com WX1200 2-Port Ethernet Switch (3CRWX120695A)
Layer 2/3 Managed Ethernet Switch, 2 x 10Base-T/100Base-TX (RJ-45), Switch Fabric 0.2 Gbps
2 store offers from £1445 - £1516

Hewlett Packard (A8001A) 2-Port Gigabit Fibre Channel Switch
Managed Fibre Channel Switch, 2 x SFP
3 store offers from £2275 - £2686

Huawei-3Com Quidway® S5012T 4-Port Gigabit Ethernet Switch (LS5012TDC48)
Layer 2/3 Managed Ethernet Switch, 4 x 10/100/1000Base-T (RJ-45), 10 x GBIC, Switch Fabric 24 Gbps
1 store offers from £1909 - £1909

Huawei-3Com Quidway® S3552F 4-Port Gigabit Ethernet Switch (LS3552F)
Layer 2/3 Managed Ethernet Switch, 4 x GBIC, Switch Fabric 17.6 Gbps
1 store offers from £2177 - £2177

Huawei-3Com Quidway® S5012T 4-Port Gigabit Ethernet Switch (LS5012TAC220)
Layer 2 Managed Ethernet Switch, 4 x 10/100/1000Base-T (RJ-45), 10 x GBIC, Switch Fabric 24 Gbps
1 store offers from £1473 - £1473

Huawei-3Com Quidway® S3552F 4-Port Gigabit Ethernet Switch (LS3552FDC)
Layer 2/3 Managed Ethernet Switch, 4 x GBIC, Switch Fabric 17.6 Gbps
1 store offers from £2504 - £2504

Hewlett Packard Brocade (A7534A) 4-Port Gigabit Fibre Channel Switch
Managed Fibre Channel Switch, 4 x Fibre Channel, Switch Fabric 1 Gbps
2 store offers from £4188 - £4548