 10 pin Memory stick special connector at the card | Memory stick is read or written by half-duplex serial protocol of three-wire system. | Pin | Signal | Description |
| 1 | VSS | |
| 2 | BS | IN, Serial protocol bus state signal |
| 3 | VCC | IN |
| 4 | DIO | IN/OUT, Serial protocol data signal |
| 5 | Reserved | |
| 6 | INS | Stick insertion/extraction detect |
| 7 | Reserved | |
| 8 | SCLK | IN, Serial protocol clock signal |
| 9 | VCC | |
| 10 | VSS | |
Write speed is 1,800MB - 330KB/s. Depends on flash memory cell. Read speed is 2.45MB/s.
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