---
product_id: 182453
title: "Action Replay 4M Plus - Ultimate enhancement for your Saturn console"
brand: "mcbazel"
price: "$141.95"
currency: USD
in_stock: true
reviews_count: 8
category: "Mcbazel"
url: https://www.desertcart.ec/products/182453-action-replay-4m-plus-ultimate-enhancement-for-your-saturn-console
store_origin: EC
region: Ecuador
---

# Auto-switching 1M/4M RAM expansion for seamless gameplay Region-free import adapter unlocks global game library 4M memory card for ample save storage Action Replay 4M Plus - Ultimate enhancement for your Saturn console

**Brand:** mcbazel
**Price:** $141.95
**Availability:** ✅ In Stock

## Summary

> 🎮 Elevate your Sega Saturn — play more, cheat smarter, and game globally!

## Quick Answers

- **What is this?** Action Replay 4M Plus - Ultimate enhancement for your Saturn console by mcbazel
- **How much does it cost?** $141.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/182453-action-replay-4m-plus-ultimate-enhancement-for-your-saturn-console)

## Best For

- mcbazel enthusiasts

## Why This Product

- Trusted mcbazel brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless RAM Boost:** Auto-detects and switches between 1M and 4M RAM for demanding titles.
- • **Plug & Play Upgrade:** Instantly enhances your Saturn without fiddly switches or complex setup.
- • **Reliable Save Backup:** 4M memory card safeguards your game progress beyond system limits.
- • **Cheat Code Powerhouse:** Built-in Action Replay codes plus customizable cheat entry.
- • **Unlock Hidden Classics:** Bypass region locks and play import Saturn games effortlessly.

## Overview

The Action Replay 4M Plus is the ultimate all-in-one enhancement cartridge for the Sega Saturn, combining a 4M memory card, auto-switching 1M/4M RAM expansion, cheat code functionality, and a region-free import adapter. It unlocks otherwise unplayable games, supports popular titles requiring extra RAM, and lets you back up saves securely. Despite its vintage hardware quirks, it remains the essential upgrade for any serious Saturn enthusiast seeking expanded gameplay and global access.

## Description

This cartridge will allow you to play many of the best Saturn games that are otherwise unplayable without it. Games that support/require the RAM carts. This is the ultimate enhancement for your beloved Saturn console. It features all in one: a cheat cartridge function (compatible with Action Replay codes), an auto switch 1M and 4M Expansion RAM card (to play games such as the Capcom fighting games, Metal Slug, King of Fighters and more), a 4M memory card as well as an import adapter to play foreign games on any Saturn console.

Review: Best stock upgrade for the Sega Saturn, but be aware! - Recently bought myself an old Sega Saturn to relive my childhood. I never had an opportunity to get any of the memory card upgrades when I was younger, so I thought I'd take the plunge and get this. This particular product has been around for a long time (the copyright on the software is 1996). It has cheat codes for most games up to about 1997, but it lets you enter your own if you want (and you can even delete the built-in codes if you need more space). It bypasses the region locking on the console so you can play import games. It has 4M of backup ROM to complement the system's built-in stoarge, though the console can't read from it directly; you have to move your game saves to/from system memory in the card's menu which the console automatically boots to if you have it inserted. It also provides either 1M or 4M of additional RAM for those games that require it; the cartridge software is smart enough to automatically detect the needed amount when the game starts up (unlike other RAM carts that had a physical switch you had to set before starting). The stock cartridge won't let you play backup copies of games (that is, games burned to CD-R). However, there is a firmware called "Psuedo Saturn Kai" that you can flash to this cart, which adds that ability. There are some ready-made (and more expensive) variants of this cart that come with that pre-flashed, but you also have the option of doing it yourself with this "official" version, assuming you can get the Saturn to load the flashing software CD the first time. A word of caution about the hardware in general; the Sega Saturn cartridge slot and after-market cartridges like this can be very finicky. The hardware is 20+ years old, and the cartridge slot itself was known for being delicate even back in its hey-day. When I first plugged mine in, the console got stuck in a boot loop. After trying various techniques to seating the cartridge, I was able to get it to load once and launch a game, but it then failed while the game was going through the intro/title screen. This told me that the cartridge itself was fine, and it was probably an issue of a bad connection when the cartridge was inserted. What eventually fixed it for me (at least for now) was a suggestion of disassembling the cartridge and plugging the naked board into the system. I did this, and to my surprise it completely fixed the issue; the cartridge loaded correctly every time I started the console, and I was able to launch games successfully without any hiccups. Apparently the plastic casing can cause the cartridge contacts to not line up properly with the pins in the slot. There are some suggestions about putting a piece of paper behind the cartridge when inserting it, or putting a piece of paper in the cartridge (on the back) to make sure it sits properly when inserted. For kicks, I just reassembled the cartridge since I double-confirmed the cartridge was fine, and so far it's continued to work properly. I'm guessing that by fully inserting the cartridge board into the cartridge slot without the casing in the way, the cartridge slot pins that weren't contacting correctly were re-bent in a way that it correctly makes contact now even with the cartridge casing on. So if you have problems, as a first step try disassembling the cartridge and plugging the cartridge board into the system. Remove the two screws on the cartridge, split apart the plastic shell, and pull out the circuit board (reverse to reassemble). If you still have trouble, there are other guides available with instructions on how to clean the cartridge slot and re-bend the pins. Make sure you are careful though! Overall the best upgrade you can get, and it's amazing it's still widely available for relatively cheap. There are some newer software options available to get even more out of it if you want, but you just need to be cognizant that old electronics like this might have problems. Thankfully, in most cases, there are solutions.
Review: The Most Essential Saturn Accesory - IF you take the time to pick up a Sega Saturn, then you need this cart. There is a reason that this cart is still highly in demand after all these years, it expands the potential of the system by leaps and bounds. You gives you more than enough storage for all of your game files, it gives you the expanded ram you need to play amazing games like X-Men vs Street Fighter, it gives you a cheat device, and most importantly it bypasses the silly region locking the system has. This allows you to play Japanese games with almost no hitch. There are some games that won't work notably KOF, but for the most part its probably the simplest region work around that you will find. The only real downsides to the cart are how the saves work and the liability that it can be for your cart slot. This does not allow you save directly to the cart like the official back up cart. You still use the internal system memory for your games, but you can back up and transfer saves from the cart when you first start up the system. The good thing about this is that if your internal battery dies you still have your saves. The other issue is not as big of a deal. The cart fits very snugly in the cart slot so if you take it in and out a lot, it has the potential to damage the pins of the cart slot. If that happens your in a bind as it likely can't be fixed and replacing it isn't all that easy or cheap either. The simple solution to this is that it never leaves the slot. You don't need another cart anyway, so no need to move it once its in. I bought mine more than two years ago, and it has yet to leave the cart slot. All in all this is a must have for any serious Sega Saturn fan. It isn't perfect, but at the end of the day it does so much for so little. Its fast, simple, and effective. I can't recommend it enough.

## Features

- 4M memory card
- 1/4 MB ram expansion pack
- action replay cheat codes
- play imports

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008FPMBNG |
| Best Sellers Rank | #11,797 in Video Games ( See Top 100 in Video Games ) #16 in Sega Saturn Accessories |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,208) |
| Date First Available | August 6, 2006 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.6 ounces |
| Item model number | 4M Plus |
| Manufacturer | EMS |
| Product Dimensions | 7 x 5.1 x 1.2 inches; 1.6 ounces |
| Rated | Rating Pending |
| Release date | June 21, 2017 |
| Type of item | Video Game |

## Images

![Action Replay 4M Plus - Ultimate enhancement for your Saturn console - Image 1](https://m.media-amazon.com/images/I/31fjP-yMscL.jpg)
![Action Replay 4M Plus - Ultimate enhancement for your Saturn console - Image 2](https://m.media-amazon.com/images/I/410DsBgKt+L.jpg)
![Action Replay 4M Plus - Ultimate enhancement for your Saturn console - Image 3](https://m.media-amazon.com/images/I/41R0hdsDiNL.jpg)
![Action Replay 4M Plus - Ultimate enhancement for your Saturn console - Image 4](https://m.media-amazon.com/images/I/41huv2hRNYL.jpg)
![Action Replay 4M Plus - Ultimate enhancement for your Saturn console - Image 5](https://m.media-amazon.com/images/I/41s2Sp4ZtzL.jpg)

## Questions & Answers

**Q: Does this have 1mb of ram or 4mb?**
A: Originally, Saturn had a 1MB RAM cart and a 4MB RAM cart. Some games worked with both, some games required one or the other. This device is compatible with all games, and automatically switches between 1MB and 4MB depending on what the game requires.

**Q: My Husband has the game (Eclipes) by sega saturn, will it work just as well with this system?**
A: The device just bypasses the the region check program to the system. Solar Eclipse should work with the device in the slot. I assume the Saturn is an American model and the copy of Solar Eclipse is American as well. The Replay won't enhance the title to my knowledge, but shouldn't hinder you actually playing the game.If the game it's self is not loading up in your system I would suggest getting the games scratches removed at a store that offers that service. I'm just adding in case your having issues with the game it's self.

**Q: Does this come packaged or loose?**
A: It comes with plastic port and packaging from our shop

**Q: Does this not work for some games? it boots to ar+ menu (a sign it works), but groove on fight still complains about needing ram**
A: That is strange
I also have Groove On Fight, but it boots up perfectly
What model/region Saturn are you using?
I use a Japanese Saturn, the original gray one
I don't know if this could have anything to do with your issue, or perhaps the disc is badly scratched?
Also, it could be possible you purchased a defective AR

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best stock upgrade for the Sega Saturn, but be aware!
*by S***S on February 17, 2022*

Recently bought myself an old Sega Saturn to relive my childhood. I never had an opportunity to get any of the memory card upgrades when I was younger, so I thought I'd take the plunge and get this. This particular product has been around for a long time (the copyright on the software is 1996). It has cheat codes for most games up to about 1997, but it lets you enter your own if you want (and you can even delete the built-in codes if you need more space). It bypasses the region locking on the console so you can play import games. It has 4M of backup ROM to complement the system's built-in stoarge, though the console can't read from it directly; you have to move your game saves to/from system memory in the card's menu which the console automatically boots to if you have it inserted. It also provides either 1M or 4M of additional RAM for those games that require it; the cartridge software is smart enough to automatically detect the needed amount when the game starts up (unlike other RAM carts that had a physical switch you had to set before starting). The stock cartridge won't let you play backup copies of games (that is, games burned to CD-R). However, there is a firmware called "Psuedo Saturn Kai" that you can flash to this cart, which adds that ability. There are some ready-made (and more expensive) variants of this cart that come with that pre-flashed, but you also have the option of doing it yourself with this "official" version, assuming you can get the Saturn to load the flashing software CD the first time. A word of caution about the hardware in general; the Sega Saturn cartridge slot and after-market cartridges like this can be very finicky. The hardware is 20+ years old, and the cartridge slot itself was known for being delicate even back in its hey-day. When I first plugged mine in, the console got stuck in a boot loop. After trying various techniques to seating the cartridge, I was able to get it to load once and launch a game, but it then failed while the game was going through the intro/title screen. This told me that the cartridge itself was fine, and it was probably an issue of a bad connection when the cartridge was inserted. What eventually fixed it for me (at least for now) was a suggestion of disassembling the cartridge and plugging the naked board into the system. I did this, and to my surprise it completely fixed the issue; the cartridge loaded correctly every time I started the console, and I was able to launch games successfully without any hiccups. Apparently the plastic casing can cause the cartridge contacts to not line up properly with the pins in the slot. There are some suggestions about putting a piece of paper behind the cartridge when inserting it, or putting a piece of paper in the cartridge (on the back) to make sure it sits properly when inserted. For kicks, I just reassembled the cartridge since I double-confirmed the cartridge was fine, and so far it's continued to work properly. I'm guessing that by fully inserting the cartridge board into the cartridge slot without the casing in the way, the cartridge slot pins that weren't contacting correctly were re-bent in a way that it correctly makes contact now even with the cartridge casing on. So if you have problems, as a first step try disassembling the cartridge and plugging the cartridge board into the system. Remove the two screws on the cartridge, split apart the plastic shell, and pull out the circuit board (reverse to reassemble). If you still have trouble, there are other guides available with instructions on how to clean the cartridge slot and re-bend the pins. Make sure you are careful though! Overall the best upgrade you can get, and it's amazing it's still widely available for relatively cheap. There are some newer software options available to get even more out of it if you want, but you just need to be cognizant that old electronics like this might have problems. Thankfully, in most cases, there are solutions.

### ⭐⭐⭐⭐⭐ The Most Essential Saturn Accesory
*by M***H on January 6, 2013*

IF you take the time to pick up a Sega Saturn, then you need this cart. There is a reason that this cart is still highly in demand after all these years, it expands the potential of the system by leaps and bounds. You gives you more than enough storage for all of your game files, it gives you the expanded ram you need to play amazing games like X-Men vs Street Fighter, it gives you a cheat device, and most importantly it bypasses the silly region locking the system has. This allows you to play Japanese games with almost no hitch. There are some games that won't work notably KOF, but for the most part its probably the simplest region work around that you will find. The only real downsides to the cart are how the saves work and the liability that it can be for your cart slot. This does not allow you save directly to the cart like the official back up cart. You still use the internal system memory for your games, but you can back up and transfer saves from the cart when you first start up the system. The good thing about this is that if your internal battery dies you still have your saves. The other issue is not as big of a deal. The cart fits very snugly in the cart slot so if you take it in and out a lot, it has the potential to damage the pins of the cart slot. If that happens your in a bind as it likely can't be fixed and replacing it isn't all that easy or cheap either. The simple solution to this is that it never leaves the slot. You don't need another cart anyway, so no need to move it once its in. I bought mine more than two years ago, and it has yet to leave the cart slot. All in all this is a must have for any serious Sega Saturn fan. It isn't perfect, but at the end of the day it does so much for so little. Its fast, simple, and effective. I can't recommend it enough.

### ⭐⭐⭐⭐⭐ 1. Buy Saturn, 2. Buy ARP, 3. Play lots of Japanese-only releases!!!!!
*by D***R on September 29, 2011*

I read somewhere that there were about 500 Saturn games made, yet less than half of those ever got released in the US. I don't know how accurate that is, but I do know that several Japanese-only releases are what got me to recently jump on eBay and get a Saturn. Not only does the ARP allow you to play almost all Japanese Saturn games on the North American model, but it also has the RAM expansion. This was important since one of my favorite retro-games, Dungeons and Dragons Shadow over Mystara, requires the 4MB RAM card. The ARP works nicely not just for this game, but also for X-Men vs Street Fighter, Marvel Super Heroes vs Street Fighter, Vampire Savior, Final Fight Revenge, etc... I think there's only a few games out there that won't work; King of Fighters 95 comes to mind,but I can't remember the others. Bottom line is if you're a fan of retro-gaming, you gotta get a Saturn; and if you get a Saturn, you gotta get the Action Replay Plus. Make sure it's the most recent version you purchase 'cause the previous Saturn Action Replay versions WILL NOT work for the 1/4 MB RAM games. As other reviewers pointed out, ARP also provides cheats for the more popular Saturn games, as well as memory storage. It works on both North American and Asian/ Japanese models (not sure about European models as I don't have one). The ONLY problem I had with this was that it took a few times inserting it and re-inserting in to the Saturn and a little bit of jiggling and wiggling to get it to finally work. But I don't know if that's the console's fault (I bought it used after all) or the ARP's, but now that it's in and working properly, I'm never taking it back out! 3/10/13 Update: I found out that, just like any other product, there are some bad batches and defective ARP units. I recently got a third Japanese Sega Saturn and got another ARP. It worked perfectly on the first try. Out of curiosity, I tried the new ARP on my other two Sega Saturns, and again, it worked on the first try. When I attempted to re-insert the old ARP, it was not working. I again tried the new ARP on all three Saturns, and once again, it worked perfectly on each with the first try. So the Saturns were not at fault.

## Frequently Bought Together

- Action Replay 4M Plus - Ultimate enhancement for your Saturn console
- POUND HDMI HD Link Cable for Sega Saturn - HDMI Cable with Native RGB Picture Quality, 720p Resolution, Plus Micro USB Cable for Boosted Power
- Retro-Bit Official Sega Saturn 2.4 GHz Wireless Controller for Sega Saturn, Sega Genesis Mini, Switch, PS3, PC, Mac - Includes 2 Receivers & Storage Case (Black)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ec/products/182453-action-replay-4m-plus-ultimate-enhancement-for-your-saturn-console](https://www.desertcart.ec/products/182453-action-replay-4m-plus-ultimate-enhancement-for-your-saturn-console)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-13*