SF Cable, 3 ft DB9 M/F Serial Extension Cable RS232 Connectors: DB9 Male to DB9 Female Fully shielded to prevent unwanted EMI/RFI interference All 9 connector pins are wired straight through Pin-Out: 1-1 / 2-2 / 3-3 / 4-4 / 5-5 / 6-6 / 7-7 / 8-8 / 9-9 / G-G Lifetime Warranty