User Guide

• Secure Digital (SD) card

• Secure Digital eXtended-Capacity (SDXC) card

• Secure Digital High-Capacity (SDHC) card

Supported smart card

Supported smart card specifications: 85.60 mm (3.37 inches) x 53.98 mm (2.13 inches)

Attention: Smart cards with slits are not supported. Do not insert such a smart card into the smart-card

reader of your computer. Otherwise the reader might get damaged.

Install the card

1. Locate the card slot. See “Left” on page 4 for microSD card slot, and see “Right” on page 6 for smart

card slot.

2. Insert the card firmly into the card slot until it is secured in place.

Notes:

• For the microSD card, ensure that the metal contacts are facing down and pointing toward the card

slot.

• For the smart card, ensure that the metal contacts are facing upward and pointing toward the card

slot.

Remove the card

Attention: Before removing a card, eject the card from the Windows operating system first. Otherwise, data

on the card might get corrupted or lost.

1. Click the triangular icon in the Windows notification area to show hidden icons. Then, right-click the

Safely Remove Hardware and Eject Media icon.

2. Select the corresponding item to eject the card from the Windows operating system.

3. Press the card and remove it from your computer. Store the card safely for future use.

Use RFID reader (for selected models of T490)

On 20Q9 and 20QH models, your computer might come with an integrated dual-band RFID (Radio

Frequency Identification) reader.

Turn on RFID feature

1. Enter the UEFI BIOS menu. See “Enter the UEFI BIOS menu” on page 45.

2. Select Security ➙ I/O Port Access ➙ RFID to enable the RFID feature.

T490, T590, P43s, and P53s User Guide