Article · Wikipedia archive · Last revised Jul 17, 2026

List of third-party Micro Channel computers

This is a list of computer systems based on the Micro Channel architecture that were not manufactured by IBM, mainly by Micro Channel Developers Association members. Such third-party computers were also referred to as PS/2 clones or MCA clones. The first third-party Micro Channel–based computer was Tandy Corporation's 5000 MC in July 1988. Despite expensive research and development costs on the part of third-party manufacturers of Micro Channel computers—in part due to the expensive licensing fees incurred by IBM in order to allow legal use of their technology—by 1990 most MCA clones were not fully compatible with the Micro Channel architecture or expansion cards and peripherals based on Micro Channel. By the time IBM was winding down the PS/2 line of personal computers in 1992, NCR Corporation remained one of the few committed vendors of MCA clones.

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This is a list of computer systems based on the Micro Channel architecture that were not manufactured by IBM, mainly by Micro Channel Developers Association members. Such third-party computers were also referred to as PS/2 clones or MCA clones.12 The first third-party Micro Channel–based computer was Tandy Corporation's 5000 MC in July 1988.345 Despite expensive research and development costs on the part of third-party manufacturers of Micro Channel computers—in part due to the expensive licensing fees incurred by IBM in order to allow legal use of their technology—by 1990 most MCA clones were not fully compatible with the Micro Channel architecture or expansion cards and peripherals based on Micro Channel.6 By the time IBM was winding down the PS/2 line of personal computers (which in 1987 acted as the means of introducing Micro Channel to the general public) in 1992, NCR Corporation remained one of the few committed vendors of MCA clones.7

Systems

Mfg. Model Processor Clock speed
(MHz) 		L2 cache
(KB) 		HDD Stock/min.
memory 		Max. memory
(MB) 		Form factor Date introduced Ref(s).
ALR PowerPro/MC Intel 80486 33 64–512 (CachePak boards) — 5 49 Tower January 1991 89
ALR PowerPro/MC SMP/DMP Intel 80486 or Intel 80486DX2 (optionally dual) 33 (i486)
50 (i486DX) 		64–512 (CachePak boards) — 5 49 Tower January 1992 1011
ALR PowerCache 4 Intel 80486 25 128 150 MB or 340 MB (SCSI) 2 32 Tower or desktop July 1990 (c.) 12
ALR Modular Processor System
(a.k.a. MPS) 		Intel 80386 or Intel 80486 25 (i486) or 33 (i386 and i486) 64–512 — (non-SCSI) 1 49 Desktop November 1990 131415
ALR Modular Processor System 486ASX
(a.k.a. MPS II) 		Intel 80486SX 20 64–512 None (Model 80) or 80 MB (Model 101) 1 49 Desktop April 1991 16
ALR MicroFlex 3300 Intel 80386 33 32–64 70 MB or 120 MB or 642 MB 2 64 Tower October 1990 1718
ALR MicroFlex 7000 Intel 80386 25 128 120 MB or 300 MB (ESDI) 2 16 Tower January 1989 1920
Apricot Qi 300 Intel 80386SX 16 None 30 MB (RLL) or 50 MB (SCSI) or 120 MB 2 8 Desktop February 1989 2122: 122 23
Apricot Qi 600
(a.k.a. Qi PCi) 		Intel 80386 25 64 50 MB (RLL) – 510 MB (SCSI) 1 16 Desktop February 1989 212224
Apricot Qi 900 Intel 80486 25 64 50 MB or 80 MB or 100 MB or 380 MB 1 16 Desktop April 1990 25
Apricot Qi 486SX-16 Intel 80486SX 25 128 50 MB (RLL) – 510 MB (SCSI) 1 16 Desktop May 1992 2627
Apricot Qi 486DX-25 Intel 80486 25 128 50 MB (RLL) – 510 MB (SCSI) 1 16 Desktop April 1991 (c.) 2827
Apricot Qi 486DX-33 Intel 80486 33 128 50 MB (RLL) – 510 MB (SCSI) 1 16 Desktop May 1992 2627
Apricot Qi 486DX2-50 Intel 80486DX2 50 128 50 MB (RLL) – 510 MB (SCSI) 1 16 Desktop May 1992 2627
Apricot Qi 486DX2-66 Intel 80486DX2 66 128 50 MB (RLL) – 510 MB (SCSI) 1 16 Desktop May 1992 2627
Apricot VX FTa Intel 80386 or Intel 80486 25 64 or 128 157 MB or 347 MB or 647 MB or 1.05 GB 4 16 Tower September 1989 3029
Apricot FTs
(a.k.a. FT Mk II) 		Intel 80486SX or Intel 80486 or Intel 80486DX2 (optionally dual) 25 (i486SX) or 33 (i486) or 50 or 66 (i486DX2) — 50 MB or 100 MB or 200 MB or 380 MB or 510 MB or 1.2 GB 1 16 Tower June 1991 3132
Apricot FTe Intel 80486SX or Intel 80486 or Intel 80486DX2 25 (i486SX or i486) or 33 (i486) or 50 or 66 (i486DX2) None 50 MB or 100 MB or 200 MB or 380 MB or 510 MB or 1.2 GB 1 16 Full-tower July 1991 3334
Apricot FT//s Intel 80486DX2 or Intel Pentium 66 (i486DX2) or 60 (Pentium) — Various 192 (i486DX2) or 256 (Pentium) 192 (i486DX2) or 256 (Pentium) Tower June 1993 3536
Apricot FT//e Intel 80486DX2 or Intel Pentium 66 (i486DX2) or 60 (Pentium) — Various 192 (i486DX2) or 256 (Pentium) 192 (i486DX2) or 256 (Pentium) Full-tower June 1993 3537
Bull Micral 500 Intel 80386 20 — 200 MB — — Desktop October 1989 (c.) 3839
Cumulus GL Computer/MC 386SX Intel 80386SX 25 — 80 MB 2 — Desktop July 1992 40
Cumulus GL Computer/MC 486 Intel 80486 33 — 200 MB 4 — Desktop July 1992 40
First Class
Systems 		325i Intel 80386 25 — 40 MB 2 16 Desktop April 1990 41
First Class
Systems 		F16/SX Intel 80386SX 16 — 40 MB 1 8 Desktop November 1989 4142
First Class
Systems 		F20/DX Intel 80386 20 — 40 MB 2 16 Desktop November 1989 4142
Grid Desk 386mc Intel 80386 20 — — 2 16 Desktop April 1989 (c.) 4341
Leading
Edge 		Model D3/MC Intel 80386SX 16 — — 1 4 Desktop April 1990 41
Memorexb Telex Model 7255 Intel 80386 16 — — 4 8 Desktop February 1990 4144
Memorexb Telex Model 7270c Intel 80386 25 32 — 4 8 Desktop June 1990 414546
Memorex Telex Model 8257 Intel 80386SX 20 — — — — — February 1992 47
Memorex Telex Model 8290 Intel 80486SX 33 — — — — — February 1992 47
Memorex Telex Model 9290d Intel 80486DX2 50 — — — 64 Desktop November 1992 (c.) 48
MiTAC MPS-3000F Intel 80386 25 32 — 1 24 Desktop January 1990 4941
MiTAC MPS-2386 Intel 80386SX 16 — 40 MB or 100 MB 1 24 Desktop March 1989 (c.) 506: 99–101 41
NCR System 3320 Intel 80386SX 20 — 44 MB or 100 MB 2 8 Desktop 1990 51
NCR System 3325 Intel 80486SX (-2XXX-...)
Intel 80486DX (-3XXX-...)
Intel 80486DX2 (-4XXX-...)
Intel 80486DX4 (-7XXX-...) 		33 (i486SX/DX)
66 (i486DX2)
100 (i486DX4) 		— — 0 16 (i486SX) or 128 Small form factor desktop 1990 52
NCR System 3335 Intel 80486SX 25 1 16 0 128 Small form factor desktop November 1991 5354
NCR System 3340 Intel 80486 25 — 100 MB or 200 MB 2 16 Desktop 1990 55
NCR System 3345 Intel 80486 33 — 100 MB or 200 MB or 340 MB 4 64 Desktop 1990 56
NCR System 3350 Intel 80486SX or Intel 80486DX2 25 or 33 (i486SX)
66 (i486DX2) 		— 120 MB or 213 MB or 340 MB or 535 MB or 1.05 GB 4 192 Desktop 1990 57
NCR System 3360 Intel Pentium (optionally dual) 60 — — 0 512 (parity-based)
256 (EDAC-based) 		Tower 1990 58
NCR System 3410 Intel 80486SX or Intel 80486DX2 33 (i486SX)
66 (i486DX2) 		— 213 MB or 340 MB or 535 MB or 1.05 GB 4 192 Tower 1990 59
NCR System 3416 Intel Pentium (optionally dual) 60 — — 0 256 (EDAC-based, -1000 and -1002 models)
512 (parity-based, -1010 model) 		Tower 1990 60
NCR System 3430 Intel Pentium (optionally dual) 60 256 — 0 256 (EDAC-based, -1000 and -1002 models)
512 (parity-based, -1010 model) 		Tower 1990 61
NCR System 3445 Intel 80486 33 — None or 200 MB or 327 MB or 670 MB 4 16 Tower 1990 62
NCR System 3550 Intel 80486DX2 (up to 8 identical processors) 50 256 (external; 8 KB internally per processor) 320 MB – 13 GB 16 256 Tower 1990 63
Research
Machines 		Nimbus PC-286 Intel 80286 10 — 40 MB or 60 MB or 120 MB 1 16 Desktop April 1989 64
Research
Machines 		Nimbus PC-386 Intel 80386 16 — 40 MB or 60 MB or 120 MB 1 16 Desktop April 1989 64
Olivetti P500 Intel 80386 16 — 40 MB or 80 MB or 135 MB (ESDI) 1 16 Desktop July 1989 6566
Olivetti P700e Intel 80386 25 32 — 1 24 Desktop July 1991 4667
Olivetti P750 Intel 80486 25 — 100 MB or 200 MB 2 32 Desktop August 1990 6869
Olivetti P800 Intel 80386 25 64 135 MB 4 16 Tower July 1989 6566
Olivetti M300-25
(a.k.a. P500/E) 		Intel 80386SX 20 — 60 MB 2 16 Desktop — 70
Olivetti M480-30 Intel 80486 25 — 210 MB or 270 MB or 340 MB or 510 MB or 525 MB 4 32 Desktop — 71
Olivetti M480-40 Intel 80486 33 — 210 MB or 340 MB or 525 MB 4 32 Desktop — 72
Olivetti M480-50d Intel 80486DX2 50 — — — 64 Desktop July 1993 (c.) 7374
Olivetti M480-60 Intel 80486 50 — 210 MB or 340 MB or 525 MB 8 16 Tower — 75
Olivetti M6-520 Intel 80486SX or Pentium OverDrive 25 Optional 120 MB or 210 MB or 525 MB or 1.05 GB 8 64 Desktop — 76
Olivetti M6-540 Intel 80486 or Pentium OverDrive 33 Optional 120 MB or 210 MB or 525 MB or 1.05 GB 8 64 Desktop — 76
Olivetti M6-560 Intel 80486DX2 or Pentium OverDrive 66 Optional 120 MB or 210 MB or 525 MB or 1.05 GB 8 64 Desktop — 76
Reply 286/16 Intel 80286 16 0 30 MB or 60 MB or 120 MB (EDSI) 2 8 Desktop November 1989 77
Reply 286/20 Intel 80286 20 0 30 MB or 60 MB or 120 MB (EDSI) 2 8 Desktop November 1989 77
Reply 386SX/16 Intel 80386SX 16 0 30 MB or 60 MB or 120 MB (EDSI) 2 8 Desktop March 1990 77
Reply 386SX/20 Intel 80386SX 20 0 30 MB or 60 MB or 120 MB (EDSI) 2 16 Desktop March 1990 77
Reply Model 16 Intel 80286 or Intel 80386SX 16 or 20 0 30 MB or 60 MB or 120 MB or 325 MB (EDSI) 8 8 Small form factor desktop March 1990 78
Reply Model 16 386SLC IBM 386SLC 20 0 120 MB 4 8 Small form factor desktop August 1992 79
Reply Model 16 486SLC2 IBM 486SLC2 40 0 120 MB 4 16 Small form factor desktop December 1992 80
Reply Model 32 Intel 80386 or Intel 80486SX or Intel 80486 25–33 (386) or 20 (486SX) or 25–50 (486DX) 64 (386DX at 25 MHz) or 128 (386DX at 33 MHz) 40 MB – 1.2 GB (EDSI) 4–16 32 (64 with adapter) Small form factor desktop November 1990 81
SNI PCM-3Dsx Intel 80386 16 (386) 0 40 MB – 160 MB (EDSI) 4 16 Small form factor desktop November 1990 82
SNI PCM-4T/33 Intel 80486 33 (486) 0 330 MB – 660 MB  – 1000 MB (SCSI) 8 16 Tower December 1991 83
Tandy 5000 MCf Intel 80386 20 — 40 MB (ST-506) or 84 MB 2 16 Desktop July 1988 345
Wang MC 350/16S Intel 80386 16 — 20 MB or 40 MB or 100 MB 2 8 Desktop September 1989 8485
Wells American CompuStarg Intel 8086 or Intel 80286 or Intel 80386 5–10 (8088) or 20 (80286) or 16–25 (80386) — — — 2.5 (8086) or 16 (80286 and 80386) Tower September 1988 878886
WLT
Systemsh 		PC Express MC-316S-5 Intel 80386SX 16 — — 2 8 Desktop March 1990 8941
See also

See also

Notes

Notes

  1. According to a Byte magazine cover story, the Apricot VX FT was the first i486-based computer system ever released.29
  2. OEMed by Normerel SA, a division of SMT Goupil
  3. Rebadged MiTAC MPS-3000F
  4. Clone of the IBM PS/2 Model 90 XP 486
  5. Rebadged MiTAC MPS-3000F
  6. The first Micro Channel–based personal computer not manufactured by IBM
  7. The CompuStar was a hybrid ISA–Micro Channel system. Its motherboard featured a modular bus design featuring two riser card slots, allowing for five ISA cards on a riser card in one slot and five MCA cards on a riser card in the other slot. Alternatively, users could install two riser cards of identical busses to give the computer 10 ISA slots or 10 Micro Channel slots.86
  8. Mail-order subsidiary of Wang Laboratories
References

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