The Cisco 3750 series switch is a product that is ideal for midsize organizations and enterprise branch offices.  Using Cisco's StackWise tchnology, you can combine up to nine of these 3750 series switches to form a single 32Gbps switching unit.

Models:

3750-48TS - 48x 10/100 Ethernet ports and 2x Gigabit ports 

3750-24FS - 24x 100Base-FX orts and 2x Gigabit ports

3750-24TS - 24x 10/100 Ethernet ports and 2x Gigbait ports

3750G-24T - 24x 10/100/1000 Ethernet ports

3750G-24TS - 24x 10/100/1000 Ethernet ports and 4x Gigabit ports

3750G-12S - 12x Gigabit Ethernet ports