







FSP | SKU: FSP2902_Se
SPI400U4BB Replacement Charger for FSP Mini Itx/Flex ATX 400W 80plus Gold Certified Active (400W)
Upgrade your power supply with the FSP Mini Itx/Flex ATX 400W 80plus Gold Certified Active AC Power Adapter, designed for efficiency and durability.
Easy 30 Day Return Policy
12-Month Warranty
Secure online payments
- 100-240V-8-4A,60-50Hz
- +3.3V==20.0A(ORG).+5V==20.0A(RED),+12V1==16.0A(YEL)
- 400W
- SPI400U4BB
- FSP Mini Itx/Flex ATX 400W 80plus Gold Certified Active
FSP Mini Itx/Flex ATX 400W 80plus Gold Certified Active — 400W Replacement Charger (SPI400U4BB)
Reliable Performance
Ensures consistent and efficient power delivery, reducing the risk of power
interruptions during use.
Durability
Built with high-quality materials to withstand regular use and travel,
making it a durable and long-lasting power solution.
Safety Features
Includes over-voltage, over-current, and short-circuit protection to
safeguard your device and the power adapter itself.
Replaces the following parts
MAX.OUTPUT POWER : 400W(+3.3V & +5V=120W MAX)(+12V1 & +12V2 & +12V3=30A MAX)
DC OUTPUT : +3.3V==20.0A(ORG).+5V==20.0A(RED),+12V1==16.0A(YEL)
+5Vsb==3.0A(PURP),-12V==0.5A(BLUE)
P.G SIGNAL(GRAY),GROUND(BLACK)
Dimension : 220mm (L) é‘´ 100 mm (W) é‘´ 40mm (H)
Product Highlight Efficiency Level 80 Plus Gold
Compatible with the Following Devices
SPI400U4BB FSP400-601UG
Interface:
24 needle length: 60 cm
Dual 4-pin CPU power supply cable length: 46 cm
8-pin CPU for the cable length:
21 cm
Two IDE cable lengths are: 27 and 31 cm.
Need to use SATA interface or extension cord length, or change the interface cable, please contact customer service
Compatibility Note: Please check your original Charger model before ordering. Professional installation recommended.
What's in the Box
1x FSP Mini Itx/Flex ATX 400W 80plus Gold Certified Active Charger (SPI400U4BB, 400W)
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FSP Mini Itx/Flex ATX 400W 80plus Gold Certified Active Charger Specifications:
| Condition | New |
| Input Voltage | 100-240V-8-4A,60-50Hz |
| Output Voltage | +3.3V==20.0A(ORG).+5V==20.0A(RED),+12V1==16.0A(YEL) |
| Power | 400W |
| Model: | SPI400U4BB |
| Compatibility: | FSP Mini Itx/Flex ATX 400W 80plus Gold Certified Active |
| Dimensions | NULL |
| Certifications | CE, RoHS, UL |
| Protection Functions | Overcharge, Deep Discharge, Overvoltage, Overcurrent, Short Circuit |
| Warranty | 12 Months |
Upgrade your FSP Mini Itx/Flex ATX 400W 80plus Gold Certified Active with a high-quality replacement Charger and enjoy improved performance and longer usage time.
Battery Care Tips
Getting Started
Charge your new battery fully before you use it for the first time. Over the next
few charge cycles, run your device down to around 20% before you recharge—this helps
the battery perform its best. After that, charge whenever you need to.
Keep It Healthy
Avoid letting your battery completely drain or staying plugged in constantly. Both
extremes wear it out faster. Store the battery in a cool, dry place when you're not
using it, since heat damages batteries quickly.
Shipping policy
We strive to ensure that your order arrives quickly, safely, and on time.
Free Worldwide Shipping
We offer FREE shipping on all orders.
Processing Times
Orders are generally processed and shipped from our facility within 1-2 business day (excluding weekends and holidays).
Delivery Times
Once shipped, orders typically arrive within 7–15 business days within the contiguous United States, depending on the shipping method and destination.
Please note: These are estimated delivery times. Actual delivery may be affected by customs clearance, weather, or other unforeseen circumstances. We appreciate your patience and understanding.
Tracking Information
When your order has shipped, you will receive an email informing you of your package being shipped along with a tracking number. If for any reason you don't receive this or for more shipping information, please contact us along with your order number.
Please note, tracking can take around 24---48 hours to update after dispatch.
Important Information
We are not responsible for incorrect addresses entered by the customer.
Payment policy
My Battery Parts accepts payments by any of the following methods:
Visa, MasterCard, American Express, and Discover Credit and Debit Cards, Google Pay and PayPal.