Trek High Voltage Amplifier and Power Supply Model 10/10B.
Output +/-10,000 V/10 mA, bandwidth DC to greater than 10 kHz (3 dB), slew rate 350 V/us.
Very clean three months warranty, with all cables (input, monitor, grounding, HV output), free skype training.
This is the old model of current Trek 10/10B-HS.
For full datasheet, please visit Trek website for current model 10/10B-HS: