| Name | Description | Year | Manufacturer | Rom | Clone | Sample |
| mb86292 | Fujitsu MB86292 "Orchid" Graphics Controller | | | | | |
| mb86930 | Fujitsu MB86930 'SPARClite' | | | | | |
| mb87013 | Roland MB87013 QDC | | | | | |
| mb87030 | Fujitsu MB87030 SCSI controller | | | | | |
| mb87078 | MB87078 Volume Controller | | | | | |
| mb87419_mb87420 | Roland LP MB87419/MB87420 PCM | | | | | |
| mb8795 | Fujitsu MB8795 | | | | | |
| mb88201 | Fujitsu MB88201 | | | | | |
| mb88202 | Fujitsu MB88202 | | | | | |
| mb88303 | Fujitsu MB88303 | | | | | |
| mb8841 | Fujitsu MB8841 | | | | | |
| mb8842 | Fujitsu MB8842 | | | | | |
| mb8843 | Fujitsu MB8843 | | | | | |
| mb8844 | Fujitsu MB8844 | | | | | |
| mb8866 | Fujitsu MB8866 FDC | | | | | |
| mb8876 | Fujitsu MB8876 FDC | | | | | |
| mb8877 | Fujitsu MB8877 FDC | | | | | |
| mb8884 | Fujitsu MB8884 | | | | | |
| mb89351 | Fujitsu MB89351 SCSI controller | | | | | |
| mb89352 | Fujitsu MB89352 SCSI controller | | | | | |
| mb89363b | Fujitsu MB89363B I/O | | | | | |
| mb89371 | MB89371 Dual Serial UART | | | | | |
| mb89374 | MB89374 Data Link Controller | | | | | |
| mb90082 | Fujitsu MB90082 OSD | | | | | |
| mb90610a | Fujitsu MB90610A | | | | | |
| mb90611a | Fujitsu MB90611A | | | | | |
| mb90641a | Fujitsu MB90641A | | | | | |
| mb90f574 | Fujitsu MB90F574 | | | | | |
| mb91f155a | Fujitsu MB91F155A | | | | | |
| mba009 | HLB-286 MBA-009 | 199? | <unknown> | ibm5170 | ibm5170 | |
| mba029 | MBA-029 | 199? | Mitac | ibm5170 | ibm5170 | |
| mba032q | MBA-032Q TK83305-4N-D-03 | 199? | DTK | ibm5170 | ibm5170 | |
| mbaa | Melty Blood Actress Again Version A (Japan, Rev A) | 2008 | Type-Moon / Ecole | naomi | | |
| mbaao | Melty Blood Actress Again (Japan) | 2008 | Type-Moon / Ecole | mbaa | mbaa | |
| mbaseb | Baseball (Mattel) | 1978 | Mattel Electronics | | | |
| mbaskb | Basketball (Mattel) | 1978 | Mattel Electronics | | | |
| mbaskb2 | Basketball 2 (Mattel) | 1979 | Mattel Electronics | | | |
| mbboard | Mephisto Buttons Board | | | | | |
| mbc020 | MBC020-65 CPU/Video Board (Torque Systems OEM) | 1983 | Sym Systems / Torque Systems | | | |
| mbc16 | MBC-16 | 198? | Sanyo | ibm5150 | ibm5150 | |
| mbc16lt | MBC-16LT | 198? | Sanyo | ibm5150 | ibm5150 | |
| mbc18nb | MBC-18NB | 199? | Sanyo | ibm5170 | ibm5170 | |
| mbc200 | MBC-200 | 1982 | Sanyo | | | |
| mbc28 | MBC-28 | 1992 | Sanyo | ibm5170 | ibm5170 | |
| mbc55x | MBC-55x | 1983 | Sanyo | | | |
| mbc55x_kbd | MBC-55x Keyboard | | | | | |
| mbdtower | Dark Tower (Milton Bradley) | 1981 | Milton Bradley | | | |
| mbee | Microbee 16k Standard | 1982 | Applied Technology | | | |
| mbee128 | Microbee 128k Standard | 1984 | Applied Technology | mbee | mbee | |
| mbee128p | Microbee 128k Premium | 1986 | Microbee Systems | mbee | mbee | |
| mbee256 | Microbee 256TC | 1987 | Microbee Systems | mbee | mbee | |
| mbee56 | Microbee 64k | 1983 | Applied Technology | mbee | mbee | |
| mbeeic | Microbee 32k IC | 1983 | Applied Technology | mbee | mbee | |
| mbeepc | Microbee 32k Communicator | 1984 | Applied Technology | mbee | mbee | |
| mbeepc85 | Microbee PC85 | 1985 | Applied Technology | mbee | mbee | |
| mbeepc85b | Microbee PC85 (New version) | 1985 | Microbee Systems | mbee | mbee | |
| mbeepc85s | Microbee PC85 (Swedish) | 1985 | Applied Technology | mbee | mbee | |
| mbeepp | Microbee Premium Plus+ | 2012 | Microbee Systems | mbee | mbee | |
| mbeeppc | Microbee Premium PC85 | 1986 | Microbee Systems | mbee | mbee | |
| mbeett | Microbee Teleterm | 1986 | Microbee Systems | mbee | mbee | |
| mbh1 | MB-H1 (MSX1, Japan) | 1983 | Hitachi | | | |
| mbh1e | MB-H1E (MSX1, Japan) | 1984 | Hitachi | mbh1 | mbh1 | |
| mbh2 | MB-H2 (MSX1, Japan) | 1984 | Hitachi | | | |
| mbh25 | MB-H25 (MSX1, Japan) | 1988 | Hitachi | | | |
| mbh3 | MB-H3 (MSX2, Japan) | 1985 | Hitachi | | | |
| mbh50 | MB-H50 (MSX1, Japan) | 1986 | Hitachi | | | |
| mbh70 | MB-H70 (MSX2, Japan) | 1986 | Hitachi | | | |
| mbm29dl164bd | Fujitsu MBM29DL164BD Flash | | | | | |
| mbm29f016a | Fujitsu MBM29F016A Flash | | | | | |
| mbm29f160te | Fujitsu MBM29F160TE Flash | | | | | |
| mbm29f160te_16bit | Fujitsu MBM29F160TE Flash (16-bit) | | | | | |
| mbm29lv002tc | Fujitsu MBM29LV002TC Flash | | | | | |
| mbm29lv800b | Fujitsu MBM29LV800B Flash | | | | | |
| mbomberj | Muscle Bomber: The Body Explosion (Japan 930713) | 1993 | Capcom | slammast | slammast | |
| mbombrd | Muscle Bomber Duo: Ultimate Team Battle (World 931206) | 1993 | Capcom | | | |
| mbombrdj | Muscle Bomber Duo: Heat Up Warriors (Japan 931206) | 1993 | Capcom | mbombrd | mbombrd | |
| mbossy | Mike Bossy | 1982 | Game Plan | | | genpin |
| mbrush | Magic Brush (bootleg of Crush Roller) | 1981 | bootleg (Olympia) | crush | crush | |
| mbs1 | MB-S1 | 1984 | Hitachi | | | |
| mbs1_mmu | Hitachi MB-S1 MMU | | | | | |
| mbs2euro | Mega Bonus Star II (Euro, Millennium Edition) | 2002 | Auto-Data Graz | | | |
| mbutrfly | Magical Butterfly (version U350C, protected) | 1999 | Bordun International | | | |
| mc_105te | 2011 Super HiK 105 in 1 Turbo Edition | 200? | <unknown> | | | |
| mc_110cb | 110 in 1 CoolBaby (CoolBoy RS-1S) | 200? | CoolBoy | | | |
| mc_138cb | 138 in 1 CoolBaby (CoolBoy RS-5, PCB060-10009011V1.3) | 200? | CoolBoy | | | |
| mc_7x6ss | 777777 in 1 (8 bit Slim Station, NEWPXP-DVT22-A PCB) | 200? | <unknown> | | | |
| mc_89in1 | 89 in 1 Mini Game Console (060-92023011V1.0) | 201? | <unknown> | | | |
| mc_8x6cb | 888888 in 1 (Coolboy AEF-390) | 200? | CoolBoy | | | |
| mc_8x6ss | 888888 in 1 (8 bit Slim Station, NEWPXP-DVT22-A PCB) | 200? | <unknown> | | | |
| mc_9x6sa | 999999 in 1 (8 bit Slim Station, NEWPXP-DVT22-A PCB) | 200? | <unknown> | mc_9x6ss | mc_9x6ss | |
| mc_9x6ss | 999999 in 1 (PXP2 Slim Station) | 200? | <unknown> | | | |
| mc_aa2 | 100 in 1 Arcade Action II (AT-103) | 200? | <unknown> | | | |
| mc_cb203 | Coolboy RS-17 - 203 in 1 | 201? | Coolboy | | | |
| mc_cb280 | Coolboy RS-18 (280 in 1) | 201? | CoolBoy | | | |
| mc_dcat8 | 100 in 1 (D-CAT8 8bit Console, set 1) (v5.01.11-frd, BL 20041217) | 2004 | <unknown> | | | |
| mc_dcat8a | 100 in 1 (D-CAT8 8bit Console, set 2) | 2004 | <unknown> | mc_dcat8 | mc_dcat8 | |
| mc_dg101 | dreamGEAR 101 in 1 | 200? | dreamGEAR | | | |
| mc_dgear | dreamGEAR 75-in-1 | 200? | dreamGEAR | | | |
| mc_hh210 | Handheld 210 in 1 | 201? | <unknown> | | | |
| mc_sam60 | Samuri (60 in 1) | 200? | Hummer Technology Co., Ltd. | | | |
| mc_sp69 | Sports Game 69 in 1 | 200? | <unknown> | | | |
| mc_tv200 | 200 in 1 Retro TV Game | 201? | Thumbs Up | | | |
| mc10 | MC-10 | 1983 | Tandy Radio Shack | | | |
| mc10_multiports_ext | Fred_72 and 6502man's Multiports Extension | | | | | |
| mc1000 | MC-1000 | 1985 | CCE | | | |
| mc10cart_slot | MC-10 Cartridge Slot | | | | | |
| mc10pak | MC-10 Program PAK | | | | | |
| mc10pakram | Radio Shack 16K RAM Cartridge | | | | | |
| mc1200 | MC-1200 | 1980 | Milwaukee Computers | | | |
| mc1408 | MC1408 DAC | | | | | |
| mc14411 | MC14411 Bit Rate Generator | | | | | |
| mc146818 | MC146818 RTC | | | | | |
| mc1502 | Elektronika MS 1502 | 1989 | NPO Microprocessor | | | |
| mc1502_fdc | MC-1502 floppy | | | | | |
| mc1502_rom | MC-1502 ROM cart | | | | | |
| mc1702 | Elektronika MC-1702 | 1990 | <unknown> | ibm5150 | ibm5150 | |
| mc200 | MC 200 | 1989 | Psion | mc400 | mc400 | |
| mc300 | MC-300 Micro Composer | 1988 | Roland | | | |
| mc3408 | MC3408 DAC | | | | | |
| mc3410 | MC3410 DAC | | | | | |
| mc3417 | MC3417 | | | | | |
| mc3418 | MC3418 | | | | | |
| mc400 | MC 400 | 1989 | Psion | | | |
| mc50 | MC-50 Micro Composer | 1990 | Roland | | | |
| mc50mk2 | MC-50mkII Micro Composer | 1992 | Roland | | | |
| mc68000 | mc-68000-Computer | 1984 | mc / Franzis Verlag | | | |
| mc68000_floppy | mc-68000 Floppy Interface | | | | | |
| mc68000_ram | mc-68000 2 MB RAM Expansion | | | | | |
| mc68000_sysbus | mc-68000 System Bus | | | | | |
| mc68000_sysbus_slot | mc-68000 System Bus Slot | | | | | |
| mc6809 | Motorola MC6809 | | | | | |
| mc6809e | Motorola MC6809E | | | | | |
| mc68120 | Motorola MC68120 IPC | | | | | |
| mc68121 | Motorola MC68121 IPC | | | | | |
| mc68307 | MC68307 | | | | | |
| mc68328 | MC68328 DragonBall Processor | | | | | |
| mc68328_lcd | MC68328-compatible LCD Controller | | | | | |
| mc68340 | MC68340 | | | | | |
| mc68340duart | MC68340 DUART | | | | | |
| mc68340sermod | MC68340 Serial Module | | | | | |
| mc68340timmod | MC68340 Timer Module | | | | | |
| mc6843 | Motorola MC6843 FDC | | | | | |
| mc6844 | MC6844 DMA | | | | | |
| mc6845 | Motorola MC6845 CRTC | | | | | |
| mc6845_1 | Motorola MC6845-1 CRTC | | | | | |
| mc6846 | MC6846 Programmable Timer | | | | | |
| mc6847_ntsc | Motorola MC6847 VDG (NTSC) | | | | | |
| mc6847_pal | Motorola MC6847 VDG (PAL) | | | | | |
| mc6847t1_ntsc | Motorola MC6847T1 VDG (NTSC) | | | | | |
| mc6847t1_pal | Motorola MC6847T1 VDG (PAL) | | | | | |
| mc6847y_ntsc | Motorola MC6847Y VDG (NTSC) | | | | | |
| mc6847y_pal | Motorola MC6847Y VDG (PAL) | | | | | |
| mc6852 | Motorola MC6852 SSDA | | | | | |
| mc6854 | Motorola MC6854 ADLC | | | | | |
| mc68681 | MC68681 DUART | | | | | |
| mc68901 | Motorola MC68901 MFP | | | | | |
| mc68ez328 | MC68EZ328 DragonBall-EZ Processor | | | | | |
| mc68hc11a1 | Motorola MC68HC11A1 | | | | | |
| mc68hc11d0 | Motorola MC68HC11D0 | | | | | |
| mc68hc11e1 | Motorola MC68HC11E1 | | | | | |
| mc68hc11f1 | Motorola MC68HC11F1 | | | | | |
| mc68hc11k1 | Motorola MC68HC11K1 | | | | | |
| mc68hc11m0 | Motorola MC68HC11M0 | | | | | |
| mc68hc16z1 | Motorola MC68HC16Z1 | | | | | |
| mc68hc811e2 | Motorola MC68HC811E2 | | | | | |
| mc7105 | MC7105 | 1983 | Elektronika | | | |
| mc8020 | MC-80.21/22 | 198? | VEB Elektronik Gera | | | |
| mc8030 | MC-80.30/31 | 198? | VEB Elektronik Gera | | | |
| mc8123 | MC-8123 | | | | | |
| mc88100 | Motorola MC88100 | | | | | |
| mc88200 | Motorola MC88200 Cache/Memory Management Unit | | | | | |
| mcard_h8 | Magic Card (H8, English) | 200? | <unknown> | cmagica | cmagica | |
| mcastle | Magic Castle | 1984 | Zaccaria | | | genpin |
| mcastlef | Magic Castle (French speech) | 1984 | Zaccaria | mcastle | mcastle | genpin |
| mcastleg | Magic Castle (German speech) | 1984 | Zaccaria | mcastle | mcastle | genpin |
| mcastlei | Magic Castle (Italian speech) | 1984 | Zaccaria | mcastle | mcastle | genpin |
| mcatadv | Magical Cat Adventure | 1993 | Wintechno | | | |
| mcatadvj | Magical Cat Adventure (Japan) | 1993 | Wintechno | mcatadv | mcatadv | |
| mcb216 | MCB-216 | 1979 | Cromemco | | | |
| mccpm | mc-CP/M-Computer | 1981 | GRAF Elektronik Systeme GmbH | | | |
| mccs1850 | MCCS1850 RTC | | | | | |
| mcd_isa | Mitsumi ISA CD-ROM Adapter | | | | | |
| mcd212 | MCD212 VDSC | | | | | |
| mcf5206e | Freescale MCF5206E | | | | | |
| mcf5206e_peripheral | MCF5206E Peripheral | | | | | |
| mcg85 | MCG-85 | 1981 | Atlantis Computers | | | |
| mcga | Memory Controller Gate Array | | | | | |
| mchampdx | Multi Champ Deluxe (ver. 0106, 06/01/2000) | 2000 | ESD | | | |
| mchampdxa | Multi Champ Deluxe (ver. 1126, 26/11/1999) | 1999 | ESD | mchampdx | mchampdx | |
| mchampdxb | Multi Champ Deluxe (ver. 1114, 14/11/1999) | 1999 | ESD | mchampdx | mchampdx | |
| mcheonru | Ma Cheon Ru (Korea) | 1999 | SemiCom / AceVer | | | |
| mchess | Computer Chess (Mattel) | 1980 | Mattel Electronics / Teletape Productions | | | |
| mchilli | More Chilli (20248711, NSW/ACT) | 2008 | Aristocrat | aristmk6 | | |
| mchilliq | More Chilli (20289311, Queensland) | 2010 | Aristocrat | mchilli | mchilli | |
| mcircus | Merry Circus (Version 1.0.2) | 2009 | Amcoe | | | |
| mcitylov | City Love (Japan 860904, medal) | 1986 | Nichibutsu | citylove | citylove | |
| mclass | Magic Class (Ver 2.2) | 200? | <unknown> | | | |
| mcm70 | MCM/70 | 1974 | Micro Computer Machines | | | |
| mcmseng | Mountain Computer Music System engine | | | | | |
| mcnpshnt | Mahjong Campus Hunting (Japan) | 1990 | Dynax | | | |
| mcolors | Magic Colors (ver. 1.7a) | 1999 | ABM Games | | | |
| mcolorsa | Magic Colors (ver. 1.6) | 1999 | ABM Games | mcolors | mcolors | |
| mcom4_02 | Minicom IV (2002-04-19) | 2002 | Ultratec | | | |
| mcombat | Missile Combat (Videotron bootleg, set 1) | 1980 | bootleg (Videotron) | missile | missile | |
| mcombata | Missile Combat (Videotron bootleg, set 2) | 1980 | bootleg (Videotron) | missile | missile | |
| mcombats | Missile Combat (Sidam bootleg) | 1980 | bootleg (Sidam) | missile | missile | |
| mcompgin | Computer Gin | 1979 | Mattel Electronics | | | |
| mcontest | Miss Mahjong Contest (Japan) | 1989 | Nichibutsu | | | |
| mcpx_ac97_audio | MCPX AC'97 Audio Codec Interface | | | | | |
| mcpx_ac97_modem | MCPX AC'97 Modem Controller | | | | | |
| mcpx_apu | MCP APU | | | | | |
| mcpx_eth | MCP Networking Adapter | | | | | |
| mcpx_ide | MCPX IDE Controller | | | | | |
| mcpx_isalpc | MCPX HUB Interface - ISA Bridge | | | | | |
| mcpx_ohci | MCPX OHCI USB Controller | | | | | |
| mcpx_smbus | MCPX SMBus Controller | | | | | |
| mcs3201 | Motorola MCS3201 FDC | | | | | |
| mct_adr | MCT-ADR Address Path Controller | | | | | |
| mcwars | Macro-Cosm Wars (bootleg of Galaxian) | 1979 | bootleg | galaxian | galaxian | |
| mcword | MC Word | 1992 | Psion | mc400 | mc400 | |
| mcword_de | MC Word (German) | 1992 | Psion | mc400 | mc400 | |
| mcx128 | Darren Atkinson's MCX-128 cartridge | | | | | |
| md_cart_slot | Mega Drive Cartridge Slot | | | | | |
| md_eeprom_blara | MD Brian Lara | | | | | |
| md_eeprom_cslam | MD College Slam | | | | | |
| md_eeprom_mode1 | MD Serial EEPROM Mode 1 | | | | | |
| md_eeprom_nbajam | MD NBA Jam | | | | | |
| md_eeprom_nbajama | MD NBA Jam (Alt) | | | | | |
| md_eeprom_nbajamte | MD NBA Jam TE | | | | | |
| md_eeprom_nflqb | MD NFL Quarterback 96 | | | | | |
| md_eeprom_nhlpa | MD NHLPA 93 | | | | | |
| md_eeprom_stm95 | MD Cart + EEPROM STM95 | | | | | |
| md_ggenie | MD Game Genie | | | | | |
| md_jcart | MD J-Cart games | | | | | |
| md_kbd | Micro-Decision Keyboard | | | | | |
| md_rom_16mj2 | MD 16 Majong Tiles II | | | | | |
| md_rom_beggarp | MD Beggar Prince | | | | | |
| md_rom_bugslife | MD A Bug's Life | | | | | |
| md_rom_chinf3 | MD Chinese Fighter 3 | | | | | |
| md_rom_cjmjclub | MD Chaoji Majiang Club / Super Mahjong Club | | | | | |
| md_rom_cm2in1 | MD Codemasters 2in1 | | | | | |
| md_rom_elfwor | MD Linghuan Daoshi Super Magician / Elf Wor | | | | | |
| md_rom_fram | MD Standard cart + FRAM | | | | | |
| md_rom_kof98 | MD KOF 98 | | | | | |
| md_rom_kof99 | MD KOF 99 | | | | | |
| md_rom_lion2 | MD Lion King 2 | | | | | |
| md_rom_lion3 | MD Lion King 3 | | | | | |
| md_rom_mcpirate | MD Pirate Multicarts (various) | | | | | |
| md_rom_mjlov | MD Majiang Qingren / Mahjong Lover | | | | | |
| md_rom_pokea | MD Pokemon (alt protection) | | | | | |