ReDream PSU - Power Supply Replacement for Sega Dreamcast

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ReDream PSU - Power Supply Replacement for Sega Dreamcast


This is Rexus’s take on the DreamPSU. This 12v power supply works with all versions (PAL, NTSC-US, NTSC-J).

A 12v AC/DC adapter with 5.5×2.1mm barrel size positive center tip is required and available as an option.

Compatible with all ODEs (Optical disc emulators)

No soldering required

The PSU includes a couple of extra sockets (5v and 12v) for extra mods (connectors are JST VH).

Ripple+noise on the 3.3v rail is 28mV and on the 5V rail is 19mV under max load (measured with a 20Mhz BW limit).


Please Note:   The optional high quality MeanWell power adapter is highly recommended by the manufacturer, who warns against using cheap power adapters with these units.  If you want to save money and use the same MeanWell adapter on all your rePSU units (ReDream, ReSaturn, RePSX, and ReN64), they are all compatible with the same power adapter.

6 Reviews

  • 5
    Nice replacements power supply

    Posted by Alex on Jul 19th 2023

    After installing a gdemu in my Dreamcast I read plenty of reviews with people mentioning the OEM power supply overheating. Decided to swap to another supply to be on the safe side. This fit the bill perfectly and was easy to install. No complaints after install.

  • 1
    Terrible interference

    Posted by Daniel on Mar 23rd 2023

    I bought the power supply ReDream PSU combo. It causes atrocious interference in the video signal, especially noticeable in VGA. Had to put the original power supply back.

    I learned too late that there are Twitter threads talking about how bad this product is for filtering out interference thanks to its extremely basic design.

  • 5
    Great upgrade

    Posted by mugen tenshin on Feb 18th 2023

    I was having issues with video noise with my original PSU. I replaced it with the V1 redream PSU a few years ago and it was great, modded a new dreamcast just recently with MODE and this and it looks and sounds almost perfect. Pick up Stone Age gamers power brick as well, this is such a great upgrade that`s really easy to install.

  • 5
    Solid PSU replacement

    Posted by Josh M. on Jan 12th 2023

    Purchased this to replace my Dreamcast`s original power supply, as the console was crashing when outputting 480p (apparently this has to do with aging caps in the power supply).

    Sure enough, after replacing it with this new PSU the console ran great.

    One thing to keep in mind however: while you can use any power adapter that supplies 12v and >=3A with this PSU, using a cheap no-name adapter will likely result in noisy video output; the generic power brick adapter I got off of Amazon resulted in a noisy signal with my Dreamcast, but a wall wart taken from a HDD dock resulted in a clean video signal. Bottom line, don`t cheap out when selecting a power adapter for this PSU!

  • 5
    ReDream PSU

    Posted by Brandon Kinney on Aug 17th 2022

    Fantastic product! I love modding my Dreamcast and this is an excellent addition! Fast shipping! Easy install! My Dreamcast is running better than ever!

  • 5
    Redream PSU

    Posted by Robert on May 8th 2022

    came fast and super easy to install very happy with my purchase and highly recommend this upgrade