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Black fully modular ATX power supply 150 mm long with 135 mm fan

FSP

FSP HTI-1000M 1000W ATX 3.1 Titanium power supply

SKU CH-MMZH-ERD5W MPN HTI-1000M

A 1000W ATX 3.1 power supply with 80 Plus Titanium efficiency, fully modular cables and a 135mm FDB fan rated Cybenetics Lambda A++ for quiet operation

  • Max wattage1000 W
  • Power efficiency> 79%
  • Modular cablingYes
  • Fan configuration1 × 140 mm
  • Power factor correctionActive
  • Main power connector24+8Pin
  • Delivers 1000W continuous power for demanding builds
  • 80 Plus Titanium certification achieves 94% efficiency at 50% load
  • Fully modular cabling reduces clutter and improves airflow
  • Cybenetics Lambda A++ rating ensures exceptionally quiet operation
  • Compact 150mm length fits a wide range of cases

ATX 3.1 Titanium 1000W power supply

The FSP HTI-1000M delivers 1000 W of continuous power in an ATX 3.1 compatible form factor. It targets builders who need high efficiency and full modularity for modern graphics cards and CPUs. The unit carries 80 Plus Titanium certification and a Cybenetics Lambda A++ noise rating.

PCIe 5.1 12V-2x6 connector support

The power supply includes a native 12V-2x6 connector rated for PCIe 5.1 power excursions. ATX 3.1 allows transient spikes well above the nominal 1000 W rating, so the platform must handle short bursts without shutdown. Cable length and routing remain the installer's responsibility.

Replaces older ATX 2.x or non-modular units

Upgrading from an ATX 2.x design removes the need for adapter cables and adds the 12V-2x6 interface required by current GPUs. The jump is worth it when the existing unit lacks native PCIe 5.1 support or cannot sustain high transient loads. Fully modular cabling also reduces clutter compared with fixed-cable models.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $202.99
Pricier than about 63% of the 10,869 comparable items (median $142.99).
Max wattage 1000 W
Higher than about 70% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameFSP Group
Product line80 Plus
Model name1000 W
Part numberPPA10A3808
Product colorBlack
Product typeATX 3.1 Compatible
Ports & slots
PCIe power connectors1 × 6+2-Pin
Power
Max wattage1000 W
Power efficiency> 79%
Modular cablingYes
Power factor correctionActive
Main power connector24+8Pin
12V railsYes
Power good signal100-500 ms
Efficiency certification80 PLUS Certified
Overvoltage protectionYes
Overload protectionYes
Supply voltage100–120 V / 200–240 V
AC input frequency50/60 Hz
Compatibility
PSU length limit250 mm
Environment & compliance
PSU noise ratingCybenetics A++
More details
Fan configuration1 × 140 mm

Questions about this item

Should I pick the 1000W unit or look for a higher wattage model?

The only model listed is the 1000W unit rated at 1000W total power with 83.33A on the +12V rail, so choose this capacity if your build needs up to 1000W.

What does the 1000W rating deliver inside a real PC?

It supplies up to 1000W total with 83.33A on the +12V rail, 20A on +3.3V and +5V combined to 120W, 0.3A on -12V and 3A on +5Vsb, all at 94% typical efficiency.

How does the ATX 3.1 and PCIe 5.1 interface limit power spikes?

The PSU meets ATX 3.1 and PCIe 5.1 excursion requirements and includes a 12VHPWR connector, so it handles the transient spikes those standards define for modern GPUs.

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