Where do I buy the power brick?

i bought mine from ebay. you can also buy one from Amazon. Just search for "DA330PM111" in Amazon or Ebay. The search will show you the power brick. It is rated 330W but when used with the HDPLEX 300W, it can support a gaming system with a GPU with TDP up to 150W such as GTX1070. I paired the Dell power brick 330W with my HDPLEX 250W (older version of HDPLEX 300W) on a system that has i7 6700 and GTX 1070. The system runs perfectly fine.

Please provide 12v, 5v, 3.3v and -12v output current ratings. where can i purchase internal ac/dc adapter?

HD-plex publishes the current rating for each voltage.http://www.hd-plex.com/HDPLEX-250W-Hi-Fi-DC-ATX-Power-Supply-16V-24V-Wide-Range-Voltage-Input.htmlAbout AD/DC adapter, I prefer an external one but HD-Plex also offers an 80W that can be installed internally.

What cables are included? If none, is there an option to buy them in a kit?

Complete ATX cable set are included. Those includes 24PIN, 8PIN EPS CPU, DUAL 6+2 PIN PCIEXPRESS, SATA CABLE. Please see this page for details http://www.hd-plex.com/product/300W.DC-ATX.PSU/en/fanlesspcpackagecontent.html

will this work with the dell pa-7e 210W adapter?

Yes since Dell PA-7E also use 7.4*5.0 DC connector.

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HDPLEX 400W Hi-Fi DC-ATX Power Supply (Wide 16V-24V DC Input)

HDPLEX 400W Hi-Fi DC-ATX Power Supply (Wide 16V-24V DC Input)

Product ID: 12689764

Details

Brand
HDPLEX
Compatible Devices
Personal
Connector Type
atx pcie
Cooling Method
Air
Form Factor
ATX
Item Weight
1.1 Pounds

⚡400W continuous, 500W peak power

🔋>94% DC-DC efficiency

🛠️4-layer 2oz gold PCB

Description

⚡ Power your passion with precision and silence.

READY FOR HIGH END GP US - Includes PCIE 6+6+2 PIN AUX power support to fuel demanding video cards without compromise.
AUDIOPHILE GRADE COMPONENTS - Equipped with WIMA capacitors, INFINEON MOSFETs, and Sanyo solid capacitors for ultra-stable, clean power delivery.
POWERHOUSE IN A COMPACT FRAME - Delivers robust 400W continuous and 500W peak power in a sleek 150x51.5mm footprint—perfect for space-conscious pros.
EFFICIENCY THAT SAVES ENERGY NOISE - Over 94% DC-DC efficiency with advanced TI-LM2642 chip and ripple noise suppression for whisper-quiet, eco-friendly operation.
ENGINEERED FOR LONGEVITY HEAT MANAGEMENT - Dual aluminum heatsinks and Würth high-current inductors ensure cool, reliable performance under pressure.

The HDPLEX 400W Hi-Fi DC-ATX Power Supply is a fanless, high-efficiency power converter designed for compact, high-performance systems. Featuring premium components like Texas Instruments chips, WIMA audio-grade capacitors, and a 4-layer gold PCB, it delivers up to 400W continuous and 500W peak power with over 94% efficiency. Its small footprint and advanced thermal design make it ideal for audiophile-grade computer audio setups and small form factor gaming rigs requiring clean, stable power.

Specifications

ASIN	B00J3X7RU6
Brand	HDPLEX
Compatible Devices	Personal Computer
Connector Quantity	2
Connector Type Used on Cable	atx,pcie
Cooling Method	Air
Customer Reviews	3.9 3.9 out of 5 stars (22)
Form Factor	ATX
Item Dimensions	10.2 x 3.9 x 2.4 inches
Item Weight	1.1 Pounds
Manufacturer	HDPLEX
Maximum Input Voltage	24 Volts (AC)
Mfr Part Number	FBA_HDPLEX.300W.DCATX
Minimum Input Voltage	16 Volts
Model Name	FBA_HDPLEX.300W.DCATX
Model Number	FBA_HDPLEX.300W.DCATX
Output Wattage	400 Watts
Power Supply Design	Modular
System Bus Connector Type	6+6+2pin
UPC	609132527814
Wattage	400 watts

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