Are you still worried about not finding the card tray or the test card? Or are you still worried about using a test card that has been broken for a month or two? This IP universal test card for your troubles, 3 in 1 for / Android Nano-SIM card free card test cell phone signal. You can place any carrier's Nano-SIM card with a switch to switch between working states.

Features:
Three card slot locations for any carrier's Nano SIM card.
The switch is used to switch the working status of the three card slots.
Test your phone signal without the need for a card tray repair tool.
Immersion gold process not easy to wear.
100% brand new and stable performance.

Specification:
Material: PCB
Size: 72 * 19 * 2mm / 2.8 * 0.7 * 0.1in
Compatibility: For /Android Nano-sim card

Package list:
1 * Test Card

Note:

The measurement allowed error is +/- 1-3cm.