Tripp Lite P454-006 6 Feet Null Modem Gold Cable DB9M/F
Tripp Lite P404-006 6 Feet AT Serial Modem Gold Cable DB9F/25M
Tripp Lite P456-006 6 Feet Null Modem Gold Cable DB9F/25M
C2G 52167 Serial RS232 DB9 Null Modem Cable with Low Profile Connectors M/M, In-Wall CMG-Rated, Black (10 Feet, 3.04 Meters)
Cables to Go MG-Rated DB9 Low Profile Null Modem M-F
StarTech.com 10' RS232 Serial Null Modem Cable - Null modem cable - DB-9 (F) to DB-9 (F) - 10 ft - SCNM9FF
C2G / Cables to Go
StarTech.com DB9 RS232 Serial Null Modem Cable F/F DB9 Female to Female 9-Pin RS232 Null Modem Cable, 1-Meter, (SCNM9FF1MBK)
StarTech.com 10 ft Cross Wired DB9 to DB25 Serial Null Modem Cable - F/M - Null modem cable - DB-9 (F) to DB-25 (M) - 10 ft - SCNM925FM