JacobsParts Inc. FP5139 100W DC Boost Step-up Converter
- 100 W
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myVolts
A compact 19 V pico-ATX supply delivering up to 200 W with a full modular cable set for ITX motherboards
The myVolts Bobin delivers up to 200 W from a 16 V to 24 V DC source, with 19 V suggested. It provides a 24-pin ATX connector, 4-pin CPU auxiliary, one SATA power lead, one Molex and one floppy connector. Active PFC and full modular cabling keep the layout tidy inside small-form-factor or server chassis.
The unit suits ITX motherboards that need standard ATX voltages — +3.30 V, +5.00 V and +12.00 V — without an internal AC inlet. The jump is worth it when space or noise rules out a full-size PSU and a suitable 19 V laptop-style adapter is already available. It is not for systems that require more than 200 W or multiple 12 V GPU connectors.
Installation is a straight swap: connect the barrel plug to the adapter, then attach the modular leads to the board and drives. What usually goes wrong is undersizing the external adapter — it must supply the full 200 W at 19 V — or forgetting that the single SATA lead limits drive count without extra splitters.
| Type | AT |
|---|
It uses a DC barrel jack with a 2.5 mm inner diameter and a 5.5 mm outer diameter.
Connect the 12 V input plug, then attach the 20+4 pin ATX, 4 pin CPU, SATA, Molex and floppy cables; the step often missed is verifying the source delivers 16–24 V before powering on.
The 20+4 pin ATX, 4 pin CPU auxiliary, SATA power, 4 pin Molex and floppy drive cables are the items most likely to wear out over time.
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