We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular silver bench power supply with 3.5-inch color display and front knobs

Matrix

Matrix MPS-309 100V 1A 100W linear programmable DC server power supply

SKU CH-EB4K-CA146

A 100 W linear programmable DC supply with 1 mV and 0.1 mA resolution, 3.5 in TFT display, list output, battery charging, adjustable voltage slope, external trigger and SCPI or MODBUS over RS-232.

  • Max wattage100 W
  • Power supply redundancyMATRIX MPS-309 100 V 1A Single Channel Linear DC Power Suppl
  • Output current1 A
  • Output type100 W
  • 12V railsMATRIX MPS-309 100 V 1A Single Channel Linear DC Power Suppl
  • Power factor correctionMATRIX MPS-309 100 V 1A Single Channel Linear DC Power Suppl
  • 1 mV voltage and 0.1 mA current resolution for precise bench testing
  • 100 W linear output with low ripple and noise for clean power delivery
  • 5 inch TFT colour display with keypad and knob adjustment
  • USB data storage plus RS-232, RS-485 and USB interfaces supporting SCPI and MODBUS
  • Battery charging, list output and adjustable voltage ramp under 10 ms rise time

Matrix MPS-309 100V 1A linear power supply

The Matrix MPS-309 is a single-channel linear programmable DC power supply rated at 100V 1A and 100W. It targets engineers and technicians who need clean, low-noise output for bench testing, production-line verification, laboratory research or automated equipment integration. The 3.5-inch TFT colour display and numeric keypad provide direct voltage and current adjustment. Built-in battery-charging and list-output functions extend its usefulness for routine test sequences.

Linear regulation limits and interface constraints

Linear topology keeps ripple and noise low but caps maximum output at 100W with 1mV voltage and 0.1mA current resolution. The unit accepts 110V or 220V input for global use. Remote voltage compensation improves accuracy at the load. Communication relies on RS-232, RS-485 and USB ports supporting SCPI and MODBUS commands; no Ethernet or GPIB option is included. Voltage rise time is under 10 ms and the upward slope is adjustable.

Installation notes and common pitfalls

The supply measures 4.3 x 11.4 x 7.2 inches and weighs 13 pounds, so bench space and a sturdy shelf are required. Intelligent fan control reduces noise but airflow clearance at the rear must be maintained. Users sometimes forget to enable remote sense when leads are long, causing voltage drop at the device under test. SCPI command syntax differs from MODBUS register mapping; mixing the two without consulting the manual leads to configuration errors.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $603.99
Pricier than about 90% of the 3,798 comparable items (median $131.99).
Max wattage 100 W
Lower than about 96% of the 235 comparable items (median 668 W).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameMATRIX
Product line100 V 1A, MPS-309
Model name100 V 1A
Part numberMPS-309
Ports & slots
Output type100 W
Power
Max wattage100 W
Power supply redundancyMATRIX MPS-309 100 V 1A Single Channel Linear DC Power Supply Programmable, 1mV 0.1 mA High Resolution, USB Data Storage, Adjustable Upward Slope, Battery Charging and External Triggering Function, linear programmable dc power supply adjustable power supply for Prouduction line work bench routine test Lab and institute Electronic repair Automated equipment integration testing
Output current1 A
12V railsMATRIX MPS-309 100 V 1A Single Channel Linear DC Power Supply Programmable, 1mV 0.1 mA High Resolution, USB Data Storage, Adjustable Upward Slope, Battery Charging and External Triggering Function, linear programmable dc power supply adjustable power supply for Prouduction line work bench routine test Lab and institute Electronic repair Automated equipment integration testing
Power factor correctionMATRIX MPS-309 100 V 1A Single Channel Linear DC Power Supply Programmable, 1mV 0.1 mA High Resolution, USB Data Storage, Adjustable Upward Slope, Battery Charging and External Triggering Function, linear programmable dc power supply adjustable power supply for Prouduction line work bench routine test Lab and institute Electronic repair Automated equipment integration testing
Built-in protectionLinear programmable dc power supply adjustable power supply for Prouduction line work bench routine test Lab and institute Electronic repair Automated equipment integration testing
Size & build
Product dimensions4.3 in × 11.4 in × 7.2 in
Product weight13 lb (5.9 kg)
In the box
In the boxMATRIX MPS-309 100 V 1A Single Channel Linear DC Power Supply Programmable, 1mV 0.1 mA High Resolution, USB Data Storage, Adjustable Upward Slope, Battery Charging and External Triggering Function x 1

Questions about this item

Should I choose the 100V 1A version or a different capacity for bench testing?

This model provides a single 100V 1A output rated at 100W, suitable for production line, lab and repair bench tasks that need precise linear regulation.

What does the 1mV and 0.1mA resolution mean when I set voltage or current on the bench?

You can adjust output in 1mV voltage steps and 0.1mA current steps, giving fine control for low-level circuit validation and battery charging profiles.

Which interfaces are built in and what do they limit in automated test setups?

RS-232, RS-485 and USB ports support SCPI and MODBUS commands, letting you script sequences and log data to an external USB drive.

More in Server & Hot-Plug PSUs

Similar items