| Models | Interface | Channels | Total Power(W) | Resolution | Noise | Power regulation rate | Load regulation rate |
| HDP4324 | USB HOST, USB DEVICE, Digital I/O, LAN | 3 | 245 | 1 mV, 1 mA | <350μVrms / 2mVpp | Voltage:≤0.01% + 2mV; Current:≤0.01% + 250μA | Voltage:≤0.01% + 2mV; Current:≤0.01% + 250μA; |
| HDP4324B | USB HOST, USB DEVICE, Digital I/O, LAN, RS232, RS485 | 3 | 245 | 1 mV, 1 mA | <350μVrms / 2mVpp | Voltage:≤0.01% + 2mV; Current:≤0.01% + 250μA | Voltage:≤0.01% + 2mV; Current:≤0.01% + 250μA; |
| HDP4324H | USB HOST, USB DEVICE, Digital I/O, LAN, RS232, RS485, GPIB | 3 | 245 | 1 mV, 1 mA | <350μVrms / 2mVpp | Voltage:≤0.01% + 2mV; Current:≤0.01% + 250μA | Voltage:≤0.01% + 2mV; Current:≤0.01% + 250μA; |