The Uni-T UT658A is a USB tester designed to monitor the parameters of chargers, power banks, USB Type-A cables, and other power supply devices. The device measures voltage in the range of 4–24 V DC, current from 0.05 to 3 A DC, capacity up to 99,999 mAh, energy up to 1000 Wh, equivalent circuit resistance from 1 to 480 Ω, and D+ and D- data line voltages up to 3.3 V, allowing for a quick assessment of power quality and the condition of the tested equipment. The model supports USB Type-A ports, USB 2.0 and 3.0 standards, and QC 3.0 fast charging. Additionally, it allows for the storage of 10 data sets and the recording of measurements for up to 99 hours, 59 minutes, and 59 seconds with a resolution of 1 second. Simultaneous display of key parameters on the screen facilitates result analysis, while the compact dimensions of 93 × 45 × 13 mm and a weight of 50.6 g make the device convenient for everyday use and easy to carry.
Included
USB tester
User manual
Specifications
Manufacturer
Uni-T
Model
UT658A
Product type
USB tester
Input and output ports
USB Type-A
Data transmission standards
USB 2.0 / 3.0
Voltage measurement range
4–24 V DC
Voltage resolution
0.01 V
Current measurement range
0.05–3 A DC
Current resolution
0.01 A
Capacity measurement range
0–99,999 mAh
Capacity resolution
1 mAh
Energy measurement range
0–1000 Wh
Circuit equivalent resistance range
1–480 Ω
Data line D+ voltage range
0–3.3 V
Data line D- voltage range
0–3.3 V
Data logging memory
10 data sets
Maximum recording time
99 h 59 min 59 s
Time resolution
1 s
Supported fast charging protocols
QC 3.0
Color
White
Dimensions
93 × 45 × 13 mm
Weight
50.6 g
Certifications
CE, UKCA
InnPro
Measuring tools
Tools
UNI-T
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