ATA 40 to 44 pin (2.5 inch to 3.5 inch) Cable Pinout
From AllPinouts
Cable pinout for: ATA 40 to 44 pin (2.5 inch to 3.5 inch)
This adapter will enable you to connect a 44 pin notebook HDD (2,5 inch) to 40 pin ATA bus (3.5 inch).
See ATA (Advanced Technology Attachment) Internal for more information about this bus.
![]()
(40 PIN IDC MALE)
unknow 44 pin connector at the notebook HDD
| ATA 40 Pin | ATA 44 Pin | Name | Description |
|---|---|---|---|
| 1 | 1 | /RESET | Reset |
| 2 | 2 | GND | Ground |
| 3 | 3 | DD7 | Data 7 |
| 4 | 4 | DD8 | Data 8 |
| 5 | 5 | DD6 | Data 6 |
| 6 | 6 | DD9 | Data 9 |
| 7 | 7 | DD5 | Data 5 |
| 8 | 8 | DD10 | Data 10 |
| 9 | 9 | DD4 | Data 4 |
| 10 | 10 | DD11 | Data 11 |
| 11 | 11 | DD3 | Data 3 |
| 12 | 12 | DD12 | Data 12 |
| 13 | 13 | DD2 | Data 2 |
| 14 | 14 | DD13 | Data 13 |
| 15 | 15 | DD1 | Data 1 |
| 16 | 16 | DD14 | Data 14 |
| 17 | 17 | DD0 | Data 0 |
| 18 | 18 | DD15 | Data 15 |
| 19 | 19 | GND | Ground |
| 20 | 20 | key (nc) | - |
| 21 | 21 | DMARQ | DMA Request |
| 22 | 22 | GND | Ground |
| 23 | 23 | /DIOW | Write Strobe |
| 24 | 24 | GND | Ground |
| 25 | 25 | /DIOR | Read Strobe |
| 26 | 26 | GND | Ground |
| 27 | 27 | IORDY | I/O Ready |
| 28 | 28 | Device Cfg | Spindle Sync or Cable Select |
| 29 | 29 | /DMACK | DMA Acknowledge |
| 30 | 30 | GND | Ground |
| 31 | 31 | INTRQ | Interrupt Request |
| 32 | 32 | /IOCS16 | IO ChipSelect 16 |
| 33 | 33 | DA1 | Address 1 |
| 34 | 34 | PDIAG | Passed Diagnostics |
| 35 | 35 | DA0 | Address 0 |
| 36 | 36 | DA2 | Address 2 |
| 37 | 37 | /IDE_CS0 | (1F0-1F7) |
| 38 | 38 | /IDE_CS1 | (3F6-3F7) |
| 39 | 39 | /ACTIVE - /DASI - DASP | Led driver |
| 40 | 40 | GND | Ground |
| -- | 41 | VCC | +5 V |
| -- | 42 | VCC | +5 V |
| -- | 43 | GND | Ground |
| -- | 44 | GND | Ground |
