Cisco PA-MC-T3 Multi-Channel T3 Synchronous Serial Port Adapter
$54.23
7140-2T3 VPN Router Provides Two high-Speed, synchronous Serial Ports That Support Full-Duplex Operation at T3 (45-Mbps) speeds Compatible Replacement Spare Part for Cisco Systems
from $80.49
SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, HEXNUTS, [Windows 11/10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 2.5 Feet (CB-DB9P)
$9.99
from $7.49
StarTech.com USB to Serial Adapter - 2 Port - Wall Mount - Din Rail Clips - Industrial - COM Port Retention - FTDI - DB9 (ICUSB2322I)
$71.68
from $70.96
StarTech.com 3m RS232 Serial Null Modem Cable, Crossover Serial Cable w/Al-Mylar Shielding, DB9 Serial COM Port Cable Female to Male, Compatible w/DTE Devices, Black, F/M (9FMNM-3M-RS232-CABLE)
from $7.51
StarTech.com 1 Port 16-Inch DB9 Serial Port Bracket to 10 Pin Header - Low Profile (PLATE9M16LP)
$6.48
from $6.32
StarTech.com 1 Port USB to Serial RS232 Adapter - Prolific PL-2303 - USB to DB9 Serial Adapter Cable - RS232 Serial Converter (ICUSB232V2)
$25.99
from $23.14
HiLetgo 5pcs RS232 to TTL Converter Module COM Serial Port Board MAX3232 MAX232CSE
from $7.89
Dual Synchronous Boot Card, SATA Port/4PIN Port Synchronous Power Board 24Pin to 4Pin Adapter Card Dual PSU Multiple Power Supply Adapter Power Supply Connector (4PIN Port)
from $3.99
Gearmo 4 Port USB to Serial RS232 Adapter FTDI Chipset, Supports Win 11, 10, 8, 7, Linux, Mac w/ESD and Surge Protection
from $39.98
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