This adapter will enable you to connect a 44 pin notebook HDD (2,5 inch) to 40 pin ATA bus (3.5 inch). 
(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 |
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