| OAK OTI-077 | 1993 | I.B.M and Compatibles | VGA Graphics Card | 16bit ISA | OAK Technologies Inc. |
| OAK OTI-037C | 1990 | I.B.M and Compatibles | VGA Graphics Card | 8bit ISA | EGA Graphics Card | CGA Graphics Card | MDA Graphics Card | OAK Technologies Inc. |
| Octek PVGA1C WD90C11A | 1991 | I.B.M and Compatibles | VGA Graphics Card | 16bit ISA | Octek | Western Digital Corporation |
| Octek AVGA-20 | 1993 | I.B.M and Compatibles | VGA Graphics Card | 16bit ISA | Octek |
| OAK OTI-077 | 1992 | I.B.M and Compatibles | VGA Graphics Card | 16bit ISA | OAK Technologies Inc. |
| OPTi Gold 933a | 1996 | I.B.M and Compatibles | Sound Card | 16bit ISA | OPTi Technologies |
| Octek ARK1491 | 1994 | I.B.M and Compatibles | VGA Graphics Card | Parallel Port | VL-BUS | IDE Controller | Floppy Controller | Serial Port | Game Port | ARK Logic, Inc. | Octek |
| Octek ARK1491 | 1994 | I.B.M and Compatibles | VGA Graphics Card | Parallel Port | VL-BUS | IDE Controller | Floppy Controller | Serial Port | Game Port | ARK Logic, Inc. | Octek |
| OMTI / SMS MFM Controller Card Model 5520 | 1988 | I.B.M and Compatibles | 8bit ISA | MFM Controller | OMTI |
| OPTi 82C495XLC | 1995 | I.B.M and Compatibles | 8bit ISA | 16bit ISA | Box F1 (Mainboards) | Mainboard | 80386 | DX | OPTi Technologies |
| OPTi 82C495XLC | 1995 | I.B.M and Compatibles | 8bit ISA | 16bit ISA | Box F1 (Mainboards) | Mainboard | 80386 | DX | OPTi Technologies |
| Octek Rhino MVP4-BKE | 2000 | I.B.M and Compatibles | PCI | Sound Card | 16bit ISA | Parallel Port | IDE Controller | Floppy Controller | Serial Port | Mainboard | Box F2 (Mainboards) | Pentium | Octek |
| OMTI / SMS MFM Controller Card Model 5520 | 1988 | I.B.M and Compatibles | 8bit ISA | MFM Controller | OMTI |
| OMTI MFM Controller Card | 1987 | I.B.M and Compatibles | 16bit ISA | Floppy Controller | MFM Controller | OMTI |