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HDPLEX 250W GaN ATX all-in-one PSU

HDPLEX GaN 250 is a passively cooled 250W power supply designed for ultra compact PCs & silent systems. Two units can be synced together for additional wattage. The 250W model is priced at US$145 and is available to order on HDPLEX.com

Case that supports HDPLEX 400W DC-ATX or 200W/400W ACDC mounting will also supports HDPLEX 250W GaN ATX.

SPECIFICATIONS

MODELHDPLEX 250W GaN ATX AIO
DIMENSIONS170 x 55 x 25mm (L x W x H)
WATTAGE 250W (upto 300W Peak)
EFFICIENCY 94%
OPERATING TEMPERATURE-10~75°C
SAFETY FEATURES UVP, OVP, SCP, OPP, OTP
MODULARY
COOLING SYSTEMPassive

CABLES / SETUP

The HDPLEX 250W GaN ATX supports modular ATX output and can sync with a second unit via included sync cable.

One HDPLEX GaN can be used to power the motherboard and CPU; while the second unit supplies power the GPU. The HDPLEX 250 GaN unit also comes included with Flex ATX bracket and very short 24-PIN motherboard cable.


HDPLEX vs Flex ATX vs SFX

HDPLEX GaN 250 is roughly the same length as standard Flex ATX power supply when including Flex ATX cables.


TEST SYSTEM

This system is an example of hardware you could run on 250W power supply for general use, gaming, video editing etc.

CASEDensium 4+ v2 (sponsor)
MOTHERBOARDGIGABYTE B660I AORUS PRO DDR4 (paid link)
CPUIntel 12400 (Sponsor)
CPU COOLERNoctua NH-L9i-17xx chromax.Black (paid link)
GPU ASUS RTX 3050 Dual OC (Sponsor)
RISER CABLELINKUP 200mm PCIe 4.0 ITX Riser Cable (paid link)
PSUHDPLEX 250 GaN (sponsor)
RAMCorsair VENGEANCE LPX, 16GB (2x8GB), 3600MHz, CL16 (paid link)
STORAGE1TB M.2 NVME (paid link)
CASE FANS2x Noctua NF-A9x14 chromax.Black set to exhaust (paid link)

PEEK-LOAD BENCHMARK (250~300W)

Our test system pulled between 265~285W under synthetic stress tests running Prime95 & MSI Kombustor simultaneously for period of 30-minutes. We do not recommend you run the HDPLEX GaN 250 within its peak wattage for excessive periods.


FULL-LOAD BENCHMARK (250W)

Our test system pulled sustained 255W under synthetic load running CPU-Z & MSI Kombustor simultaneously for period of 6-hours.


GAMING-LOAD BENCHMARK

We used Destiny 2 for our gaming test as this game pushes both CPU & GPU the hardest out of the games we’ve tested. Under gaming load, the avg system powerdraw was 200W with occasional peak of 220W. It’s worth noting that a good power supply should have no problems operating at full load for its rated lifetime.


FLEX ATX ALTERNATIVE

We removed Flex ATX power supply from Densium 4+ v2 build, and replaced it with the HDPLEX GaN 250 behind the front panel. In doing so, we were able to install two bottom NF-A9x15 case fans. You can see the thermal comparison in the chart below.


DENSIUM 4+ v2 (BOTTOM CASE FANS)

The bottom case fans had no noticable impact on case thermals with stock Densium 4+ v2 feet. Installing taller feet, we saw roughly 4°C drop in CPU thermals & 1~2°C GPU thermals. Setting bottom case fans to exhaust provided largest temperature reductions.


HDPLEX GaN 250 FLEX ATX BRACKET COMPATIBILITY

Unfortunately, very limited number of cases may not compatible with HDPLEX’S included Flex ATX bracket due to back panel design of some case as we encountered in the Densium 4+ v2. We made our own makeshift solution for testing.


BE CAREFUL

We’d highly recommend using individual cable ties or similar to assist in keeping the clear sheaths/covers securely covering the internal power extension cable pins or risk receiving a nasty shock 😲 if they make contact with another conductive material.

In this instance, it did not result permanent damage to the HDPLEX GaN or PC hardware.


FEEDBACK

We’d like to see the internal power extension cable be single unit in future revision with soldered power connector pins; properly sleeved.

This would reduce risks of mishaps and allow for the cables to be black as they would no longer need to be mustard in appearance.

We’d also like to see the sync connector to be black to help blend in with other cables.


Comments 1

  1. “Case that supports HDPLEX 400W DC-ATX or 200W/400W ACDC mounting will also supports HDPLEX 250W GaN ATX.”

    Can it be used in Skyreach Tiny?

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