| Diamond Monster 3D Voodoo | 1996 | I.B.M and Compatibles | VGA Graphics Card | PCI | Diamond Multimedia |
| Diamond Stealth 64 VRAM | 1995 | I.B.M and Compatibles | VGA Graphics Card | PCI | Diamond Multimedia |
| Diamond Viper V330 | 1997 | I.B.M and Compatibles | VGA Graphics Card | PCI | Diamond Multimedia |
| DFI VG-7000 OAK OTI-067 | 1990 | I.B.M and Compatibles | VGA Graphics Card | EGA Graphics Card | CGA Graphics Card | 16bit ISA | MDA Graphics Card | DFI Inc. | OAK Technologies Inc. |
| DSP3364P S3 Trio64 | 1996 | I.B.M and Compatibles | VGA Graphics Card | PCI | DataExpert Corporation |
| Diamond Stealth Video 2500 | 1996 | I.B.M and Compatibles | VGA Graphics Card | PCI | Diamond Multimedia |
| Daytona 64T TGUI9680-1 | 1999 | I.B.M and Compatibles | VGA Graphics Card | PCI | Trident Microsystems Inc. |
| DTK Paradise PEGA 1A | 1988 | I.B.M and Compatibles | 8bit ISA | EGA Graphics Card | Printer Card | DTK Computer | Paradise Systems |
| Digital Ethernet Card | 1987 | I.B.M and Compatibles | 8bit ISA | Ethernet Card | Digital Equipment Corporation |
| Diamond Stealth SE | 1995 | I.B.M and Compatibles | VGA Graphics Card | PCI | Diamond Multimedia | S3 Graphics |
| Diamond Monster Sound MX300 | 1998 | I.B.M and Compatibles | PCI | Sound Card | Diamond Multimedia |
| Diamond Stealth 64 DRAM | 1994 | I.B.M and Compatibles | VGA Graphics Card | PCI | Diamond Multimedia | S3 Graphics |
| Davicom DM9101F | 1998 | I.B.M and Compatibles | PCI | Ethernet Card | Davicom Semiconductors |
| Data Tech MFM Controller Card | 1988 | I.B.M and Compatibles | 8bit ISA | MFM Controller | Data Tech Corporation |
| Davicom DM9008F CN200/600/650E plus | 1998 | I.B.M and Compatibles | 16bit ISA | Ethernet Card | Davicom Semiconductors |
| DFE-538TX | 2000 | I.B.M and Compatibles | PCI | Ethernet Card | DFE |
| DTK PII-108 RS232 Card | 1988 | I.B.M and Compatibles | 8bit ISA | Serial Port | DTK Computer |
| Domex 436P UDS IS11 | 1996 | I.B.M and Compatibles | 16bit ISA | Scanner Card | Domex |
| DC-290N CDROM Interface Card | 1998 | I.B.M and Compatibles | PCI | 8bit ISA | CD-ROM Interface Card | Unknown Manufacturer |
| DTK PKM-0038S E 2A | 1995 | I.B.M and Compatibles | 8bit ISA | 16bit ISA | VL-BUS | Box F1 (Mainboards) | Mainboard | 80486 | Battery removal | Battery damage | DTK Computer | Silicon Integrated Systems |
| DTK XT Mainboard | 1986 | I.B.M and Compatibles | 8bit ISA | Box F1 (Mainboards) | Mainboard | 8088 | DTK Computer |
| DTK PII-108 RS232 Card | 1988 | I.B.M and Compatibles | 8bit ISA | Serial Port | DTK Computer |
| Data Tech MFM Controller Card | 1988 | I.B.M and Compatibles | 8bit ISA | MFM Controller | Data Tech Corporation |
| DFI-MINI286 Rev 2 | 1987 | I.B.M and Compatibles | 8bit ISA | 16bit ISA | Mainboard | 80286 | Box F2 (Mainboards) | DFI Inc. |
| DTK PKM-0038S E 2A | 1995 | I.B.M and Compatibles | 8bit ISA | 16bit ISA | VL-BUS | Mainboard | 80486 | Battery damage | Box F2 (Mainboards) | DTK Computer |
| Disk ][ Interface Card 650-X104 | 1978 | Floppy Controller | Apple II/IIe | Apple 8bit BUS | Apple Inc. |
| Data Tech MFM Controller Card | 1986 | I.B.M and Compatibles | 8bit ISA | MFM Controller | Data Tech Corporation |
| Disk ][ Interface Card 650-X104 | 1978 | Floppy Controller | Apple II/IIe | Apple 8bit BUS | Apple Inc. |