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Having trouble decide?  Check out our PSU comparison chart here

Once you have your machine and your displays a long with all of the other gadgets that you want for your carputer you will need some way to power it.

It all comes down to two options:

  • A power inverter
  • A DC-DC power supply

Your car's battery puts off 12 volts of DC electricity. Computers natively utilize DC power as well. Because most computers are used in the home or office, they must be able to convert the electricity that comes out of the wall (which is AC curent) to DC current. This is where you will need a power inverter to convert the DC current from the car to AC current that the computers power supply can utilize. Then the computer power supply converts the AC power back into DC power so that the computer components can utilize it. In short, if you choose to use a standard computer without a CarPC specific power supply you will need a DC-AC inverter.

Your other option is to use a DC-DC power supply (such as a M2-ATX) which will allow you to connect the 12 volt DC power from your car to your computer. Most DC-DC power supplies have other features such as an ignition switch which will turn your computer on when your car is started and will send a signal to go through a soft shut-down process or put the computer into stand-by or hibernation. Most of these DC-DC power supplies also incorporate an amplifier turn-on signal which is timed to not send a turn-on signal until the CarPC has alredy started the boot-up process. This feature is usually configured to prevent amplifier turn-on thump which can not only be very annoying, but can also damage your speakers.

To learn more about the various DC-DC power supplies, you can read in this fourm: PSUs. You can also purchase many of these power supplies here
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Mp3Car DSATX 220 Watt Automotive Power Supply
Mp3Car DSATX 220 Watt Automotive Power Supply
Ships in 1 to 2 Business Days
Our Price: $159.99 In Stock!

Right out of the box the DSATX is very easy to use. It ships with the default easy to use configuration so that anyone can hook it up to their car system.

When you are ready to take it to the next level, the DSATX has an advanced Serial Port Interface that allows you to connect the DSATX to a serial port. Using a Acroname USB or RS232 translator (Purchased separately) the DSATX can be programmed or monitored. Settings that are programmed over the serial port stay in the memory even after power is completely disconnected from the DSATX.

The DSATX has a simple Character Command interface that put the DSATX into different modes. It also has a simple programming dialog routine to set basic configuration. The DSATX also has an advanced API for configuring a vast range of the DSATX's control routines allowing ultimate flexibility.

(Warning: Warranty is void if sticker is removed from bottom.)
 

Product Includes:

  • 1x DSATX 220 Watt ATX DC-DC Power Supply
  • 1x DSATX Cable Kit
  • 1x 9" 20pin ATX Power Cable with 2 HDD Power Connectors and 1 Floppy Connector
  • 1x 12" 4 pin ATX 12V Power Cable (CPU Power Cable)
  • 2x 0.1" Shunt Jumpers
  • 1x 24" 2-pin to 2-pin MotherBoard Power Switch Cable
  • 3x Insolated Terminal Ring Crimp/Solder Connectors 12-10AWG
IEI 140W DC/DC Smart ATX PSU for Mobile Applications IDDV-6304140A
IEI 140W DC/DC Smart ATX PSU for Mobile Applications IDDV-6304140A
Ships in 1 to 2 Business Days
Our Price: $135.99 In Stock!

IEI is our newest mobile PSU rated at 140 W.

Carnetix CNX-P2140 165W Dual Output Intelligent DC-DC Regulator
CarNetix CNX-P2140 185W Dual Output Intelligent DC-DC Regulator
Ships in 1 to 2 Business Days
Our Price: $135.00 In Stock!

The most powerful and intelligent regulator ever built!

Carnetix CNX-P1900 Ver. 2.2 Dual Output 140 Watt 12V DC-DC Regulator
CarNetix CNX-P1900 Ver. 2.2 Dual Output 140 Watt 12V DC-DC Regulator
Ships in 1 to 2 Business Days
Our Price: $99.95 In Stock!

The CNX-P1900 provides two outputs. The primary output is jumper selectable for 18V, 19V, or 20V operation and can provide up to 6.32 amps (125 Watts @ 20V ). The secondary output is jumper selectable to provide either +12V to power your LCD screen (or 13.5V or experimental purposes), or +5V to power USB devices (such as the Audigy 2NX sound USB sound card) with up to 3 amps (15 Watts). The P1900 can accept battery input as low as 7 volts under full load (140 watts) during cranking while providing a well-regulated output to ensure the stability of your CarPC.
M4-ATX 250W Intelligent DC-DC PSU
M4-ATX 250W Intelligent DC-DC PSU
Ships in 1 to 2 Business Days
Our Price: $88.00 In Stock!

250 watts of power and USB connectivity, in-car computing has taken a leap forward!
DC-Powered 4-Port USB Hub CNX-P5USB (12v and 24v systems)
DC-Powered 4-Port USB Hub CNX-P5USB (12v and 24v systems)
Our Price: $85.00 In Stock!

The P5USB can be used in either a +12V or +24V automotive environment. It will operate down to 7V (survives engine cranking) and can withstand voltage transients typically found in a harsh automotive environment.
DSX12VD 140W DC-DC Regulator
DSX12VD 140W DC-DC Regulator
Ships in 1 to 2 Business Days
Our Price: $84.99 In Stock!

The DSX12VD is the deluxe version of the DSX12V. It is a 140 Watt DC-DC regulator that takes an input of 12 volts (8-16) and converts it to 12 volts out at 12 Amps. Includes an intelligent startup/shutdown controller as well as undercurrent/overcurrent and temperature protection.
M2-ATX 160W Intelligent DC-DC PSU
M2-ATX 160W Intelligent DC-DC PSU
Ships in 1 to 2 Business Days
Our Price: $69.99 In Stock!

The M2-ATX is one of our most popular power supplies The M2-ATX is an intelligent, high power, vehicle (car / boat / electric cart) 12V DC-DC ATX PC power supply designed for car pc and battery powered applications. Designed to provide power and to control the ON/OFF switch of a motherboard (car PC) based on ignition status, M2-ATX is a wide input (6 to 24V) vehicle battery operated ATX power supply capable of surviving tough vehicle engine cranks (down to 6V) as well as transient over-voltage situations. Just connect it to vehicle's battery and power up your PC!
M2-ATX-HV 140W Intelligent DC-DC PSU
M2-ATX-HV 140W Intelligent DC-DC PSU
Ships in 1 to 2 Business Days
Our Price: $69.99 In Stock!

The M2-ATX-HV is an intelligent, high power, vehicle (car / boat / electric cart) 12V DC-DC ATX PC power supply designed for car pc and battery powered applications.
M3-ATX 125 Watt - Smart Automotive Power Supply
M3-ATX 125 Watt - Smart Automotive Power Supply
Usually Ships in 1 to 2 Business Days
Our Price: $67.99 In Stock!

The M3-ATX is an intelligent, high power, vehicle (car / boat / electric cart) DC-DC ATX PC power supply designed for car pc or battery powered applications. Designed to provide power and to control the ON/OFF switch of a motherboard (car PC) based on ignition status, M3-ATX is a wide input (6 to 24V) vehicle / car / battery operated ATX power supply capable of surviving tough car engine cranks (down to 6V) as well as transient over-voltage situations. Just connect it to your car / boat / RV / solar battery and power up your PC!
GP83 160W Intelligent DC-DC PSU
GP83 160W Intelligent DC-DC PSU
Ships in 1 to 2 Business Days
Our Price: $69.99
Sale Price: $59.99
You Save $10.00! In Stock!

The GP83 is our
newest mini ITX power supply.  Providing 160W of maximum power output,
the supply is suitable for a wide variety of mobile computing
applications.  The PSU includes a momentary push button reset switch
and a green power-on indicator LED pictured below. 
Intelligent DC-DC Converter with USB Interface
Intelligent DC-DC Converter with USB Interface
Ships in 1 to 2 Business Days
Our Price: $59.95 In Stock!

DCDC-USB is a high power intelligent DC-DC converter. 
M1-ATX 90 Watt - Smart Automotive Power Supply
M1-ATX 90 Watt - Smart Automotive Power Supply
Ships in 1 to 2 Business Days
Our Price: $54.95 In Stock!

This is a handy little power supply for VIA ITX motherboards. It's conceptual design heavily inflected by one of Mp3Car's founders, Zip-Lock, who wanted to help make a power supply that would take care of most people’s power supply and startup/shutdown controller needs all in one unit. For users that require more power then the M1-ATX supplies there is now an M2-ATX that is capable of powering some Pentium 4 M motherboards.

Micro Shutdown Controller
Micro Shutdown Controller
Ships in 1 to 2 Business Days
Our Price: $41.99 In Stock!

The uSDC or Micro-Shut-Down-Controller is an electronically
controlled automotive power switching device. It is primarily designed
for the purpose of starting up or shutting down a personal computer
used in a motor vehicle. It interfaces with a computer motherboard’s
power switch header that would normally connect to the push-button
switch on the front of a personal computer case. The uSDC includes a
high current relay that will cut off or apply all power to the power
supply of the personal computer to prevent any substantial current draw
when the computer is not in use. The uSDC also provides a timing
mechanism that is user selectable allowing the computer to remain “on”
for an amount of time after the ignition has been turned off. The uSDC
allows the user to mount the personal computer in remote locations
(such as a trunk) and provides hands off method automating the startup
and shutdown sequence while constantly monitoring the environmental
conditions.

 
 

Note: This is for a PCB board only. User will have to provide
adequate casing, blade style automobile connectors, and wiring to
properly use this product.

DCL11 Automotive Point-Of-Load DC-DC 15W Power Supply
DCL11 Automotive Point-Of-Load DC-DC 15W Power Supply
Ships in 1 to 2 Business Days
Our Price: $35.00 In Stock!

Point Of Load DC-DC power supply is designed specifically for powering LCDs, USB hubs, DVD drives, and other peripheral devices that require 5V.
AC/DC Power Brick 120 Volt AC to 12V DC
AC/DC Power Brick 120 Volt AC to 12V DC 5Amps
Ships in 1 to 2 Business Days
Our Price: $29.99 In Stock!

AC/DC Power Brick 120 Volt AC to 12V DC

  • AC adapter 60W
  • Input : 100 - 240V ~ 1.5 A ; 50-60 Hz
  • Output : 12VDC@5A
  • AC power cord included
Mp3Car Total Power Solution
Mp3Car Total Power Solution
Ships in 1 to 2 Business Days
Our Price: $29.99 In Stock!

This is an innovative product that makes pairing your CarNetix CNXP2140 to Intel's D945GSEJT Fanless Motherboard a snap.  Plug one end into the output connector on the P2140. Plug the other end in to the included 3.5mm receptacle used to provide the on/off pulse to the motherboard.  Plug the final power plug directly into the motherboard power receptacle.  Quick release is now no problem. 

To install the product:

1.  Attach our 3.5mm receptacle to your computer enclosure.

2.  Solder our motherboard switch wire to the receptacle and plug the other end into your motherboard "switch" jumpers. 

3.  Plug the wiring harness into your P2140, into the 3.5mm socket, and into the power plug on the motherboard. 



Xenarc MP-SC3 Power Cable Kit
CarNetix CNX-CA-XSC4
Ships in 1 to 2 Business Days
Our Price: $24.99 In Stock!

This power cable kit provides a "plug-and-play" cabling solution for either the P1900 or P2140 and a Xenarc MP-SC3. No soldering is required. The kit includes both the power cable and ACPI cable for the Xenarc MP-SC3 with rear-panel access to the PC power button. Double check your PC to make sure it has this ACPI interface.
CNX-P5V 15 Watt +5V Regulator
Carnetix CNX-P5V 15 Watt +5V Regulator
Ships in 1 to 2 Business Days
Our Price: $24.95 In Stock!

Upgrade your P1900 to include a 3RD regulated (+5V) output OR     it can also be used as a stand-alone +5V/15 Watt Point Of Load (POL) supply
Serial port for DSATX (Brainstem TTL to RS232 module)
Serial port for DSATX (Brainstem TTL to RS232 module)
Ships in 1 to 2 Business Days
Our Price: $16.99 In Stock!

Mp3Car Description: This module is designed to provide a serial port control for the DSATX. It connects directly on the DSATX power supply and allows you to do things like tweak settings and monitor performance as well as update the firmware.

Manufacture’s Description: The new BrainStem connector. This connector plugs directly into a module and offers conversion from TTL to RS-232 levels. Included are indicator LED's for host serial power and stem logic power.

The interface connector has a female four pin connector on one end. On the other end is a female DB9 connector, which can plug into your Windows serial cable, or be used with the USB 1.1 to Serial Adapter which can be used with your Mac or Windows USB hub. The CTS and RTS lines are also connected and exposed although not used by the 4-pin BrainStem connector. These can be separately wired for other uses in your application.

CNX-P1900 and CNX-P2140 Input/Output Replacement cables
CNX-P1900 and CNX-P2140 Input/Output Replacement cables
Ships in 1 to 2 Business Days
Our Price: $15.00 In Stock!

This cable pack is a direct replacement for the stock 6-pin input cable harness and the stock 8-pin output cable harness for the CarNextix P1900 and P2140 regulators.
CarNetix CNX-PJ-Kit Programming kit
CarNetix CNX-PJ-Kit Programming kit
Ships in 1 to 2 Business Days
Our Price: $14.99 In Stock!

Primary output voltage programming jumper kit for the P2140. It will allow you to change the primary output to +13V, +14V, +15V, +16V or +17V.
CarNetix CNX-XSC8 Cable Kit for the Xenarc MP-SC8 Power
CarNetix CNX-XSC8 Cable Kit for the Xenarc MP-SC8 Power
Ships in 1 to 2 Business Days
Our Price: $14.95 In Stock!

This power cable kit provides a "plug-and-play" cabling solution for either the P1290 and a Xenarc MP-SC8. No soldering is required. The kit includes both the power cable (4-pin Kycon connector) and ACPI cable (1/8" stereo plug) for the Xenarc MP-SC8 with rear-panel access to the PC power button. Double check your PC to make sure it has this ACPI interface.

For bulk pricing contact store@mp3car.com.
CarNetix CNX-XSC3 Cable Kit for the Xenarc MP-SC3 Power
CarNetix CNX-XSC3 Cable Kit for the Xenarc MP-SC3 Power
Ships in 1 to 2 Business Days
Our Price: $14.95 In Stock!

This power cable kit provides a "plug-and-play" cabling solution for either the P1290 and a Xenarc MP-SC3. No soldering is required. The kit includes both the power cable and ACPI cable for the Xenarc MP-SC3 with rear-panel access to the PC power button. Double check your PC to make sure it has this ACPI interface.

For bulk pricing contact store@mp3car.com.
M4-ATX USB Cable  3'
M4-ATX USB Cable 3'
Our Price: $10.99

M4-ATX USB Link cable for using Ituner/mini-box USB software

Includes:
2.5' USB A Male to Male
6" M4-ATX pin header (GND, D+, D-, VCC) to USB A female
Metal Tray / Heatsink for 15W DC-DC POL
Ships in 1 to 2 Business Days
Our Price: $7.00 In Stock!

AC/DC Power Brick 120 Volt AC to 12V DC 500mA
AC/DC Power Brick 120 Volt AC to 12V DC 1.5A
Ships in 1 to 2 Business Days
Our Price: $5.99 In Stock!

  • AC/DC Power Brick
  • Input - 100v-240 volt AC  0.60A
  • Output - 12V DC 1200mA Center Positive
  • Made In China
Extra Monitor Power Cable
CNX Extra Monitor Power Cable
Ships in 1 to 2 Business Days
Our Price: $4.99 In Stock!

The optional LCD monitor power cable let's you power your CarPC display from the CNX-P1900 and P2140 PSU +12 volt output. Just splice this cable in parallel with your CarPC power cable so that the CNX-P1900 or P2140  powers both units. The connector fits the Lilliput and Xenarc monitors or any other monitor with a 2.1 x 5.5mm power connector.
Power Switch Cable- Jumper plug to bare wires
Power Switch Cable- Jumper plug to bare wires
Ships in 1 to 2 Business Days
Our Price: $1.99 In Stock!

Power Switch Cable- Jumper plug to bare wires