
FLEX-400W · 4:324-frame sequence pending
Flex ATX 400W
The FLEX-400W is a 150 × 81.5 × 40.5 mm Flex ATX industrial power supply family rated from 200 to 400 W, for slim 1U, NAS and embedded chassis. It uses a two-transistor forward + APFC architecture with Taiwan/Japanese 105 °C capacitors and a 40 mm dual ball bearing or quiet hydraulic bearing fan, accepts 100–240 V input and carries a 3-year warranty.
Rated power400W
Efficiency at 50%—
Warranty3yr
Highlights
- Size 150 × 81.5 × 40.5 mm
- Two-transistor forward + APFC architecture
- Taiwan / Japanese 105 °C main capacitors (CapXon / Teapo / Samxon / Rubycon / Nippon Chemi-Con / nichicon)
- 4 cm industrial-grade double ball bearing / quiet hydraulic bearing fan (TPI, Taiwan)
- Multiple protections: OCP / OVP / UVP / OPP / SCP / OTP
Applications
Output
Rated power400 W
Wattage options200 / 300 / 350 / 400 W
Input
Input voltage100–240 VAC
PFCActive PFC
Wide voltage rangeYes
Efficiency
CertificationNot 80 PLUS rated
Mechanical
Form factorFlex ATX
Dimensions (L×W×H)150 × 81.5 × 40.5 mm
Fan40 × 40 × 20 mm
TopologyTwo-transistor forward + APFC
CapacitorsTaiwan / Japanese 105 °C
Protection & warranty
ProtectionsOCP / OVP / UVP / OPP / SCP / OTP
Warranty3 years
| Output | |
|---|---|
| Rated power | 400 W |
| Wattage options | 200 / 300 / 350 / 400 W |
| Input | |
| Input voltage | 100–240 VAC |
| PFC | Active PFC |
| Wide voltage range | Yes |
| Efficiency | |
| Certification | Not 80 PLUS rated |
| Mechanical | |
| Form factor | Flex ATX |
| Dimensions (L×W×H) | 150 × 81.5 × 40.5 mm |
| Fan | 40 × 40 × 20 mm |
| Topology | Two-transistor forward + APFC |
| Capacitors | Taiwan / Japanese 105 °C |
| Protection & warranty | |
| Protections | OCP / OVP / UVP / OPP / SCP / OTP |
| Warranty | 3 years |
Efficiency at 50% · Conversion efficiency · 115 V
Certifications
Connectors
- ×1Motherboard 20+4
- ×1CPU 8 (4+4)
- ×16-pin
- ×2IDE (Molex 4-pin)
- ×3SATA
Dimensions
150 mm
81.5 mm
40.5 mm
What is the MOQ for this platform?
500 units for the standard build. Custom cable looms, housing colour or private-label plates start at 1,000 units.
Can the connector configuration be changed?
Yes. Connector count, gauge, sleeve colour and cable length are configurable at the ODM stage; drawings are issued for approval before tooling.
What is the lead time?
Samples ship in 10–15 working days. Volume production is 30–45 days from PO, subject to component allocation.


