Lenovo 23539KU manual Rear View

3

Port replicator or docking station connector

Connect your computer to a supported docking station or port replicator through this connector to extend the computer capabilities when you are in your office or at home. For more information about the supported docking stations and port replicators, see “ThinkPad docking stations and port replicators” on page 100.

4

Memory-upgrade slot

You can increase the amount of memory in your computer by installing a memory module in the memory-upgrade slot. Memory modules are available as options from Lenovo.

For more information, see “Replacing a memory module” on page 69.

5

Hard disk drive or solid state drive

Your computer has a large-capacity, customer-upgradable hard disk drive or solid state drive that can meet a variety of storage demands.

If you wish, you can purchase another hard disk drive or solid state drive and install it in the Serial Ultrabay Slim bay.

6

SIM card slot

If your computer has a wireless WAN feature, it might require a Subscriber Identification Module (SIM) card to establish wireless WAN connections. Depending on the country of delivery, the SIM card might already be installed in the SIM card slot.

7

Battery

Use your computer with battery power whenever ac power is unavailable.

By installing a second battery, available as an option, in the Serial Ultrabay Slim bay, you can extend the operating time of the computer. You also can use Power Manager to adjust your power settings as needed.

Rear View

Figure 5. ThinkPad T430s and T430si rear view

	Power jack		Ethernet connector
1		2
	USB 3.0 connector		Mini DisplayPort connector or Thunderbolt connector
3		4
	Always On USB connector		Video graphics array (VGA) connector
5		6
	Fan louvers
7

6User Guide