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Collection: Rondo Products

Rondo Products delivers reliable and high-quality solutions for gaming enthusiasts, offering an extensive range of power supplies, power adapters, memory backup carts, and cartridge adapters. Designed to enhance gaming experiences, these products ensure seamless play with consistent power delivery and expanded storage capabilities, tailored for various gaming systems.

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Atari Jaguar (2 products)
Neo-Geo (1 product)
NES (Nintendo Entertainment System) (2 products)
Nintendo Virtual Boy (2 products)
SNES (Super Nintendo) (4 products)
Nintendo 64 (1 product)
Nintendo Gamecube (2 products)
Sega Master System (5 products)
Sega Genesis (9 products)
Sega Game Gear (1 product)
Sega Nomad (2 products)
Sega CD (5 products)
Sega 32x (4 products)
TurboGrafx-16 (3 products)
PC Engine (2 products)
TurboDuo (1 product)

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Cartridge Adapters (3 products)
Development and Testing (2 products)
Input Cards (2 products)
Power Supplies (17 products)
Video Adapters (4 products)
Video Converters (3 products)
Video Switchers (2 products)

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Atari Jaguar (2 products)
Neo-Geo (1 products)
NES (Nintendo Entertainment System) (2 products)
Nintendo Virtual Boy (2 products)
SNES (Super Nintendo) (4 products)
Nintendo 64 (1 products)
Nintendo Gamecube (2 products)
Sega Master System (5 products)
Sega Genesis (9 products)
Sega Game Gear (1 products)
Sega Nomad (2 products)
Sega CD (5 products)
Sega 32x (4 products)
TurboGrafx-16 (3 products)
PC Engine (2 products)
TurboDuo (1 products)

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Cartridge Adapters (3 products)
Development and Testing (2 products)
Input Cards (2 products)
Power Supplies (17 products)
Video Adapters (4 products)
Video Converters (3 products)
Video Switchers (2 products)

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35 products

gcomp Automatic 8:2 Component / Composite switch

gcomp Automatic 8:2 Component / Composite switch

Regular price $349.99 USD

Sale price $349.99 USD
Unit price per
gscart Automatic 8:2 SCART switch w/ sync regeneration & Sync on Green Support

gscart Automatic 8:2 SCART switch w/ sync regeneration & Sync on Green Support

Regular price $349.99 USD

Sale price $349.99 USD
Unit price per
Rondo Products Tower-Con Kit

Rondo Products Tower-Con Kit

Regular price $34.99 USD

Sale price $34.99 USD
Unit price per
Rondo Products SNES-Con Kit

Rondo Products SNES-Con Kit

Regular price From $17.99 USD

Sale price From $17.99 USD
Unit price per
Rondo Products Multi-Con Set

Rondo Products Multi-Con Set

Regular price From $17.99 USD

Sale price From $17.99 USD
Unit price per
Rondo Products Multi-Con II Set

Rondo Products Multi-Con II Set

Regular price From $17.99 USD

Sale price From $17.99 USD
Unit price per
Rondo Products SNES-Con (PAL) Kit

Rondo Products SNES-Con (PAL) Kit

Regular price From $17.99 USD

Sale price From $17.99 USD
Unit price per
Rondo Products Duo-Con Kit

Rondo Products Duo-Con Kit

Regular price From $19.99 USD

Sale price From $19.99 USD
Unit price per
Triad Power Supply, AC-DC, 9V, 1.3A

Triad Power Supply, AC-DC, 9V, 1.3A

Regular price $11.99 USD

Sale price $11.99 USD
Unit price per
Triad Power Supply, AC-DC, 9V, 2.5A (US & International)

Triad Power Supply, AC-DC, 9V, 2.5A (US & International)

Regular price $25.99 USD

Sale price $25.99 USD
Unit price per
Rondo Products PowerBase Mini FM

Sold out

Rondo Products PowerBase Mini FM

Regular price $69.99 USD

Sale price $69.99 USD
Unit price per

Sold out
Rondo Products PowerBase Mini

Rondo Products PowerBase Mini

Regular price $49.99 USD

Sale price $49.99 USD
Unit price per
Rondo Products MS2GG SMS Master System Adapter for the Game Gear

Sale

Rondo Products MS2GG SMS Master System Adapter for the Game Gear

Regular price $64.99 USD

Regular price ~~$79.99 USD~~ Sale price $64.99 USD
Unit price per

Sale
Ultra CD RAM Cart (Sega CD/Mega CD)

Sold out

Ultra CD RAM Cart (Sega CD/Mega CD)

Regular price $69.99 USD

Sale price $69.99 USD
Unit price per

Sold out
Rondo Products HD15-2-SCART

Rondo Products HD15-2-SCART

Regular price $29.99 USD

Sale price $29.99 USD
Unit price per
Rondo Products SCART Coupler

Sale

Rondo Products SCART Coupler

Regular price $14.99 USD

Regular price ~~$24.99 USD~~ Sale price $14.99 USD
Unit price per

Sale

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Welcome to the Castle!

Founded by lifelong gamers and collectors, it is our mission is to help you bring your favorite retro consoles out of the closet and attic (don't keep your games in the attic) and deliver modern quality of life improvements where we can.

Unlike generic marketplaces and mega-retailers, CastleMania is proudly boutique. Every product is hand-picked. Every order matters. And every customer is part of a growing community of gamers who know that authenticity, performance, and a little passion goes a long way.

We’re also trusted by the brands that make the best products in the business. CastleMania Games is an authorized retailer for HD Retrovision, EON, Retro-Bit, Retro-Time Hyperkin and more. Our catalog is packed with solutions you can count on, and our support team is made up of real people who speak your language: scanlines, RGB mods, and CRT vs HDMI debates included.

(844) 994-2637
support@castlemaniagames.com
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