Current products:



Take your Gamer-Pro, GPA, or 4-Play to your favorite console. Imagine using any controller on any console or maybe just extended the ability of your Gamer-Pro/4-Pay to USB 2.0 or even XINPUT! The Bridge has logic built in that auto maps the button layouts for your easy of use. When you plug it in, the adapter will know what controller is in use and what console is being used. This can also be forced on the Bridge flash tool. There are also alternative maps, turbo features, and button rotation modes if you want to configure ass such or you can just plug it in and play, letting it figure out the mapping for you. In many cases the Bridge will even let you use odd controllers like paddles, tablet, and wheels and try to map it out in a way to works best. Mix and match to your linking and game in way you always dreamed of.   TECH: The Bridge uses LLAPI to communicate with the adapter. It supports any adapter that uses LLAPI. Since LLAPI is open source any product can use this adapter’s ability to game on consoles and USB devices. Of course LLAPI will need to be integrated into any adapter that chooses to communicate with the Bridge, but it costs only curiosity and time. We encourage anyone to get in touch with us about adapter you want to use with the Bridge. The protocol is very easy to use, only requires 2 wires, at least a 12MHz chip, and we already have source code written in c to do it.

Ever want to use your favorite
controller on a console but it’s
not sported? Click the above
image to Read more….


A MiSTer based card bring all Bliss-Box logic with an advanced LLAPI protocol to bypass USB. Read more about it on our support page under BlisSter. Or stop by our store front. 

The MiSTer is a small community of people sharing love and respect for older hardware and wanting to keep enjoying these older systems. We have produced a board for the MiSTer that performs as well as any of the current USB board options and extends a few new features and options that will come to be rather attractive to many MiSTer fans.

This board has the Bliss-Box chips (that adapt almost any wired controller to USB)  integrated on-board. Though USB is not the only option. A main attraction to the BlisSTer is a thing we call LLAPI (Low Level API). With some help from a developer Jamie AKA Rysha, Many cores were written to take advantage of the LLAPI. This board allows you to communicate with a controller at it’s own interrupt level. Your MiSTer cores, while used with the Bliss-Box, will allow any controller to be used the way it was intended to be used on the console itself. It even auto maps the buttons! The LLAPI even has the ability (although not implemented yet) to directly communicate with memory packs or rumble motors in the very same manner the console does. Although that is a bit ahead of its time, it has the ability to do it. These core are now updated and maintained but the legendary Ricardo over at ultimate mister.

REV3 is the latest version and a join effort from the top seller of MiSTer product in the world. Ricardo also has taken it upon himself to head up the LLAPI core developed. Cores are going out faster then people are aware of them.

Have the MiSTer, like using OEM
controllers, and ultra fast latency?
Click the above
image to Read more…
4-Play, Gamer-Pro (jr)

4-Play, Gamer-Pro (jr)

4-Play, Gamer-Pro, Gamer-Pro jr., and the all new upcoming GPA are Bliss-Box’s bread and butter adapters. The original hand bad Bliss-Box started the controller crave in 2007 and lead to  4-Play ( no longer in production) and the formation of Bliss-Box. The successor to the 4-Play (Gamer-Pro) sold as a single player device. All the power of the 4-Play in a much smaller product.  Read more about the 4-Play here  The GPA is simply the GP but advanced… There is also a Gamer-Pro jr. that is for the Do it yourself minded person.

These adapter convert retro controllers to USB. Whether you have 1 or many controllers that you want to  use on a PC or other USB device, this is a great option. 

These adapters are the first adapters to support such a wide variety of controllers. The list of supported systems continues to grow! We hope to add more and more to our already impressive repertoire. It even works on almost any modern operating system, including Windows, OSX, Linux, Android, and even PS3, Nintendo Switch and Xbox original ! And when coupled with the Bridge, allows just about anything.

They also support n64 memory card transfers to and from the real console and emulators. Just like the original Adaptoid with even more features.






The greatest advantage of owning this adapter, is that you’ll never need to buy another retro controller USB adapter again. In addition to the controllers it already supports, it can be easily updated to support new ones. We can even design new adapter cables should the need arise. The design has been based on the concepts of adaptability, authenticity, and value since the very beginning.

4-Play info

Gamer Pro

Gamer Pro Jr

Want to use any retro controller
over USB or LLAPI. Click the above
image to Read more….



Combo Fix – The adapter adds two things to the Gamer-Pro. It adds a capacitor for smoother Atari controller action, and a short for PSX to support rumble. This can be used with all Bliss-Box adapter and boards. the Gamer-Pro and Jr both bennifit from these options.  The BlisSter beneifits from the Atari paddle fix, and the Gamer-Pro Advanced already has this on board.

Level Shifter – This is simple for anyone wanting to use the GPA, GP, GPjr, or 4-Play on the Mister over the User port. Using the adapter over this port is exclusively for LLAPI. If you just want to use it as USB, this adapter is not required.

BreakOut Board – If you are in to the D.I.Y world, this adapter is a nice way to expose the HDMI connector. Create for arcade setups!.


There are many miscellaneous options, please visit our store front to find the right option for you.

Looking to tweak your gaming
experiences even more? Click the above
image to Read more….


Bliss-Box has research the construction of the cable design very thoroughly. Many tests for compatibly, resistance and durability have been made.  Our cables are no more then wires from connector to connector and the pin outs are open to the public. We want to support the ‘do it yourself’ nature of older hardware. This also lends it’s self to counterfeit knockoffs that other companies will make. This has already happened and you can read more about it here.

One of the original ideas for the Bliss-Box adapter was to be modular. If a connector goes bad it will not cost you the price of another adapter as you can replace the cable. Or, maybe you just do not need them all. As mentioned, you can use your own, or buy from another company. We can not extend outr warranty or guarantee that they work but you do have options.

The original adapter had 16 cable types.

Thew Bridge is planned to also have many types of cables. And we plan to manufacture many other types of cables to come. there cables may requires components in side.

There are many Cable options, please visit our store front to find the right option for you.

Want to breakout a controller
to a common interface, we found
this so useful all of our products
use it. Click the above
image to Read more….


The APC ( Advanced Port Connector) is nothing more then a cable switch box. It has up and down selectors and requires a 12 volts power. It has 1 input and 8 (not available yet)  or 16 ( limited supply) outputs.  Because of the way the HDMI ports are being used, they will not work with a normal HDMI switch box.

Tired of changing out cables,
want a switch box? Click the above
image to
Advanced Adapter Series (GPA)

Advanced Adapter Series (GPA)

The Advanced adapters (i.e. GPA) are the new evolution of Bliss-Box adapters and the follow up to the 4-Play, Gamer-Pro, and Gamer-Pro jr line up. The first production adapter (4-Play) was constructed in 2015 as a follow up to the original “Bliss-Box” hand made models.  A lot has changed since then and the Advanced Series uses a chipset that is a bit faster. Also the early adapter had a firmware controlled USB interface whereas the Advanced Series is hardware.

What does this mean for you? It means you can Go to any level, jump higher, stay bigger, and live forever. Wait… you get the idea. It’s better 😉 The main thing to keep in mind with the GPA is that it was designed to be a replacement. This means it will work along side the early version and communicate in the same fashion. You do not need to make new Retro Arch map files, or worry about button layouts. You  do not have to download new software or learn new features. It just acts the same, only better. The GPA will use its own firmware but is flashed with the API Tool or new stand alone flasher.

New GPA advanced features.

> Compatible with 4-Play/GP Cables
> Xinput and HID support
> Fixed USB 1mS Poll rate
> USB 2.0 High Speed
> True Force Feedback Ready
> No rumble fix needed!

 The First of the new Advance Series is the GPA or Gamer-Pro Advanced. Interestingly it comes in the same case with a face lift and a new USB cable, designed for higher speeds. Attaching this adapter to a system that previously had the GP/4P installed will be seamless to the OS. So you can just plug it in and play. If you have any stored setting in the eEprom, you may want to note that and program this one in the same way.

The new features explained:

Xinput is a new driver many OS’s are using and although it is limited compared to HID, it is more widely recognized.  Using it will depreciate functionality as Xinput is less capable. for example you do not get 24 buttons, so it is not good for keypad controllers. It  also has less Analogs. Some controllers like PlayStation can use pressure buttons and use all 8 analogs of HID where Xinput falls short.With Xinput there is also no API integration and this needs to be understood. Most of the time you want HID or Xinput not both. So to enable this mode you use a jumper found inside the adapter. 

-Fixed 1mS Poll Rate, the GPA is going to update the host every 1mS whether the Controller has new data or not. There are controllers that take longer, so lag is not limited to the GPA and rather the controller itself. In many cases there were tricks to force controllers to poll faster than intended and all of this data was captured. Very few controllers could not take speeds of 1mS. 

-USB 2.0, yes the original GP was USB 1.1, GPA is not.  USB 3.0 didn’t seem like it had any advantage in this case so 2.0 was chosen. 

-The GP also used a firmware USB driver of sorts, and the GPA is hardware, so Dolphin crashing and the rumble slowdowns are gone now. This will also make Rumble a bit more realistic.

Bottom line, if you are new to Bliss-Box this is by far without a doubt the right option. If you are satisfied with the GP, do not upgrade. Understand mixing and matching is perfectly ok, there is no reason to trash your GP.

Note on compatibility. The aim was to match the compatibly as much as possible. There were no exception and some improvements. The aim remains the same, if you send us a controller we will try to make it work. Of course the main controllers we have on had were tested and reported on.

The new retro controller adapter
over USB or LLAPI. Click the above
image to Read more….

Read more about our products on our Support page  or stop by our Store front. 

Upcoming products:

A.I.R – Turn Bliss-Box in to Xinput or a wireless application!  Yes now you can use all the same functionality over the air, with a sender and receiver. The sender also doubles as an adapter from HID to Xinput. Follow the progress of the A.I.R on the Blog. Aimed for 2023.

BlisSTer REV3 – The BlisSter just simply refuses to stop selling!!! Every year we make it better and better. Now with a joint effort from you can have the best BlisSTer yet! USB LED are corrected so that the LED comes on when occupied. Added Vbus support and replaced protection module with integrated protection electronics. Back to a blue board and the power switch extends a bit further out to make it easier to operate. Now available in stores.

Bridge Cables – The bridge cables ( connecting Bridge to console) will have a very distinct tag on them. We want to make sure there is no confusion on what cable goes where. The cables are also HDMI so it could be easy to mistake them. Most Bridges cables use a male end for the console and it should be easy to ID from a controller cable. Though, the regular controller cables are not necessarily pinned out the same way. So a new style cable had to be made and identified by the large white jacket label. These will be the same cost and there may be a few cables that look similar. For example DB9 cable fits many consoles and it not always the same pin out when it comes to power pins. So each cable will have a clear label on it. More info to come but 12 cables had already been made and many more are well on the way.