$19.00

Sega Naomi BIOS: 21577E (USA)

The 21577E Naomi BIOS, burned and tested onto an EPROM and ready for you to install.

The 21577E EPROM is a popular BIOS in the US, as all games that support it have English text and game titles (Virtua Tennis, as opposed to Power Smash, for example), but it plays US capable software. Most software has US compatibility, the most notable title lacking it and requiring a JPN Bios being Street Fighters Zero Three Upper. However, some games, like Ikaruga, play fine and display Japanese text under this ROM as well. The 21577 indicates USA region, the "E" indicates revision E, with full compatibility with DIMMs, NET DIMMs of any software revision, GD-Roms, and link hardware.

Attention - this does not get SHIPPING calculated correctly if ordered alone - if ordering alone, I can give you a lower/custom shipping quote for USPS flat rate small box. Please email us for orders of this type.

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2 x	K Shirt (Adult M)
3 x	K Shirt (Adult XL)
4 x	Astra Superstars NB
2 x	Sega Naomi 2 BIOS: 23605C (Japan)
1 x	Sanwa Pushbutton 30mm - White
1 x	Martial Masters PGM
2 x	The NEW Black Shockbox - 10 Pack - IN STOCK
2 x	Mushihime Sama Futari Black Label TH
2 x	espGaluda 2 TH
1 x	Metal Slug 3 SN CL/FF
2 x	Ibara TH
1 x	Spectral vs Generation FF-NC (v2)
2 x	Ketsui Revised ROM
2 x	Dodonpachi Dai Fukkatsu 1.5 TH
2 x	DOJ Black MU
2 x	Sega Naomi BIOS: 21576H (Japan Universal)
1 x	Metal Slug 3 SN JP/FF
2 x	Mushihime Sama Futari 1.5 TH
1 x	Universal Combo Game Case - DISCONTINUED
1 x	Sanwa Small (24mm) Pushbutton - Green (Screw Back)
1 x	Deathsmiles MegaBlack TH
1 x	Spectral vs Generation FF-NC (v3)
2 x	Golden Axe The Duel NB
1 x	Knights of Valour 2 PGM
2 x	Sega Naomi 2 BIOS: 23608B (Export)
1 x	Decathlete SP
1 x	Columns '97 LG
1 x	Oriental Legend PGM
3 x	The NEW Black Shockbox - 18 Pack - IN STOCK
1 x	Sanwa Pushbutton 30mm - Dark Blue
1 x	Knights of Valour 2/9D
2 x	YOUR CUSTOM SHOCKBOX - Minimum 100 units
1 x	Sanwa Pushbutton 30mm - Orange
1 x	Sanwa Pushbutton 30mm - Blue
3 x	Sega Naomi 2 BIOS: 23607B (USA)
1 x	Spectral vs Generation FF-NC
2 x	Radiant Silvergun DB
1 x	Last Blade SN FF-C
1 x	Final Fight Revenge DB1
1 x	Spectral vs Generation FF-NC (v4)
2 x	Dodonpachi Saidaioujou MU
1 x	The NEW Black Shockbox - 5 Pack - IN STOCK
1 x	Puzzle Star PGM
1 x	Sanwa Pushbutton 30mm - Green
1 x	Deathsmiles TH
1 x	Super Oriental Legend PGM
2 x	Muchi Muchi Pork TH
2 x	DOJ Black MU2
1 x	Sanwa Pushbutton 30mm - White (Screw Back)
2 x	Groove on Fight DB
1 x	Sanwa Pushbutton 30mm - Pink
1 x	DoDonPachi 2 PGM
1 x	Sanwa Pushbutton 30mm - Violet
2 x	Ketsui NM
3 x	Outlaws Of The Last Dynasty NB
2 x	Ibara Black Label MU
1 x	K Shirt (Adult XXL)
1 x	All Japan Pro Wrestling CM
1 x	Last Blade SN FF-JP
1 x	Dragon World 2 PGM
1 x	Cotton Boomerang NB
2 x	Final Fight Revenge DB2
2 x	Puyo Puyo Sun SN
2 x	Ketsui MU
1 x	Sanwa Small (24mm) Pushbutton - Dark Blue
1 x	Sanwa Small (24mm) Pushbutton - Green
2 x	Espgaluda MU
1 x	Radiant Silvergun XX
1 x	MVS Cart Labels - Option 1 - You Print!
1 x	Sanwa Small (24mm) Pushbutton - Blue
1 x	Sanwa Pushbutton 30mm - Pink (Screw Back)
1 x	Cotton 2 PJ
1 x	Sanwa Pushbutton 30mm - Red (Screw Back)
1 x	MVS Cart Labels - Option 2 - We Print for you!
1 x	The Gladiator PGM
1 x	Die Hard Arcade LG
1 x	Sanwa Small (24mm) Pushbutton - Yellow
1 x	Knights of Valour PGM
1 x	Demon Front PGM
1 x	Crossed Swords LG
1 x	Ironclad LG
1 x	Panic Bomber TP
1 x	Crossed Swords BB
1 x	Panic Bomber MY
1 x	Ironclad LG/2
1 x	Dodonpachi Dai Fukkatsu Black Label TH
1 x	Panic Bomber JO
1 x	Crossed Swords LE
1 x	Mushihime Sama TH
1 x	Quiz King of Fighters NC
1 x	Pink Sweets TH
1 x	Ironclad JO
1 x	Ironclad JW
1 x	Mushihime Tama (Puzzle) TH
1 x	Red Katana TH
1 x	Crossed Swords ACL
1 x	Ironclad DB
1 x	Panic Bomber NF1/DB
1 x	Ibara Black Label TH
1 x	Panic Bomber NF/1
1 x	Samurai Shodown 5 BB
1 x	Samurai Shodown 5 BS
1 x	Flip Shot LE
1 x	Super Sidekicks 3 JR Box
1 x	Sega Naomi Other ROM not listed
1 x	Samurai Shodown 5 LG
1 x	Flip Shot XX
1 x	World Heroes Perfect JR Box
1 x	Over Top LG/3 FF
1 x	World Heroes Perfect MY
1 x	World Heroes Perfect BB/NC
1 x	Samurai Shodown 5 NC/1
1 x	Over Top XX
1 x	World Heroes Perfect DB-JP
1 x	Flip Shot NF
1 x	World Heroes LE
1 x	Kizuna Encounter TP

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SNK and NEO-GEO are registered trademarks of SNK PLAYMORE CORPORATION. All intellectual property rights related to NEO-GEO belongs to SNK PLAYMORE CORPORATION. Additionally, Atomiswave is a registered trademark of Sammy Corporation. All intellectual property rights related to Atomiswave belongs to Sammy Corporation. Furthermore, PGM is a registered trademark of IGS. All intellectual property rights related to PGM belongs to IGS.