Product Code PM123
CPU ARM Cortex M4
Memory 32KB RAM, 128K Flash
User Interface 1.8" LCD 128X64 Pixels + Membrane keypad
Standards ATX12V
Connectors 24-Pin In, 8-Pin CPU In, 6-Pin PCIe In, SATA In, 24-Pin Out, 8-Pin CPU Out, 6-Pin PCIe Out, SATA Out
Internal load Internal load (1Watt) on +12V1DC, +12V2DC, +5VDC and +3.3VDC voltage rails. Active only when the PSU tester is in standalone mode (Disable in Inline mode).
What can be Measured Voltages:
+12V1DC, +12V2DC (12V CPU), +5VDC, +3.3VDC, +5VSB, -12VDC, +12VDC PCIe

+12V1DC, +12V2DC (12V CPU), +5VDC, +3.3VDC, +5VSB, +12VDC PCIe, +12VDC SATA, +5VDC SATA. +3.3VDC SATA

+12V1DC, +12V2DC (12V CPU), +5VDC, +3.3VDC

Power-on Time (T1), Rise Time (T2), PWR_OK delay (T3) and Power-down warning (T6)

Minimum slew rate and Ramp up:
Check smooth and continuous ramp up of +12V1DC, +12V2DC (12V CPU), +5VDC, +3.3VDC.

Power Sequencing:
Check +12VDC and +5VDC against +3.3VDC during power up to ensure they are equal to or greater than the +3.3VDC.

Voltage Measurenment Range +12V: 0 to +14.7V, Resolution: 3.5mV
+5V: 0 to +6.6V, Resolution: 1.6mV
+3.3V: 0 to +4.5V, Resolution: 1.1mV
-12V: -15V to +3.3V, Resolution: 4.4mV
Maximum inline current +12V1DC: 25A
+12V2DC (12V CPU): 50A
+5VDC: 30A
+3.3VDC: 30A
+5VSB: 8A
+12VDC PCIe: 30A
+12VDC SATA: 5.5A
+5VDC SATA: 5.5A
+3.3VDC SATA: 5.5A
Operational Voltage 5V via USB port or the +5V on the 24-Pin connector
Operational Current 200mA
Measurement Error (A) ±4% before calibration, 1.5% after calibration (Note 1)
Measurement Error (V) ±1% before calibration, 0.25% after calibration (Note 1)
Logging and Test Report Voltage, current, power and ripple logging at configurable time intervals (1, 10, 30 and 60 seconds).
A report can be generated any time during the test and it contains voltage, current, power, ripple and timings for each power rail. The report also includes the total power drawn from the PSU and an overall Pass/Fail for voltages and timings.
Case High impact ABS plastic
Size 225mm x 85mm x 30mm
(8.8 x 3.3 x 1.2 inches)
Weight 240g (8.4oz)
Safety Protections Over voltage protection
+12V: protected up to 22V
+5V: protected up to 10V
+3.3V: protected up to 6.5V
Storage Temperature -30 °C to + 80 °C
Usage Temperature 0 °C to 40°C
RoHS (Lead free) Yes
Included Cables
24pin cable 24-Pin Out to Motherboard 24Pin Female to 20+4Pin Male
UL 1007 16AWG
Length: 30cm
PET Single Sleeved Black Color
8pin cpu cable CPU Out to Motherboard EPS 8Pin Female to 4+4Pin Male
UL 1007 16AWG
Length: 30cm
PET Single Sleeved Black Color
8pin pcie cable PCIe Out to Motherboard EPS 8Pin Female to 6+2Pin Male
UL 1007 16AWG
Length: 30cm
PET Whole Sleeved Black Color
sata cable SATA Out to External Hard Drives 5Pin to Dual SATA 15Pin Female
UL 1007 18AWG
Total length: 40cm
SATA to SATA Length: 10cm
Separate Black Wires
pcie splitter PCIe Splitter PCIe 6Pin Female to Dual 6+2Pin Male
UL 1007 18AWG
Length: 10cm
Separate Black/Yellow Wires
usb cable USB Cable USB type A Male to USB type B Male
Length: 1m

1. Calibration service is available upon request for an additional fee. Calibration can also be done by the user if they have a high-end multimeter and a programmable load tester.

The PSU Tester is software upgradeable.

The specifications above are for the PassMark Inline PSU Tester hardware revision 001.


Windows 7, 8, 10 and 11 are supported.
Windows: PSUTest software is required for Windows.
Both 32bit and 64bit Windows drivers are available.

Please contact sales@passmark.com for more ordering details.