$23.99
Serial Port Complete: COM Ports, USB Virtual COM Ports, and Ports for Embedded Systems (Complete Guides series)Amazon$6.23
Serial Port Complete : Programming and Circuits for RS-232 and RS-485 Links and Networks by Jan AxelsonBetter World Books$25.97
Serial Port / USB / Card Reader / Power Button IO Circuit Board - JGK40 / 0JGK40 / 10664-1 48.4EQ15.011 for Latitude E5510Newegg$34.30
Serial Port RS485 to WiFi Device Server Module Elfin-EW11 Support TCP/IP Telnet Modbus TCP Protocol Data Transfer via WiFiNewegg$49.98
Tekit Serial port card 8 RS232 multi user cards PCI 9 needle serial port serial card, PCI to RS232 converter cardNewegg$12.99
DB9 serial port cable single male and female RS232 connection cable 485 wire 38 pin 9-pin COM port 235 terminal wire 3-coreNewegg$55.06
RS232 Serial Port To TTL Converter Module & UHF VHF UV MMDVM Hotspot Support P25 DMR YSF 32Bit ARM ProcessorNewegg$19.68
Max3232 Serial Port Module 3.3V 5V Rs232 To Ttl Module With Communication Indicator (Pack Of 2)Newegg$11.40
RS232 Serial Port TX382B 2 Port Pci to 9 Pin Com Riser Card Adapter with Tracking NumberNewegg$17.99
CH9121 Serial Port to Ethernet Network Module TTL Transmission Module Industrial Microcontroller STM32Newegg$5.83
Generic Plastic Serial Port Module, Durable TTL to RS232 Fine Workmanship Plastic Brush Line Serial Module for Car Testing for Phone Flashing for Radio Modification, yafao9tfBL3mKYAmazon$7.99
JESSINIE USB Serial Port Control Relay Module Sturdy Durable Lightweight USB Relay Module USB Intelligent Control Switch Overcurrent Protection Intelligent Command Control Switch Intelligent HomeAmazon$29.99
HP Serial Port Adapter Model PA716ANewegg$16.82
FH HF Serial Port RS485 to Ethernet Device Server Module Support Elfin-EE11 TCP/IP Telnet Modbus TCP Protocol (Single Serial Server)Amazon$27.35
KVM Cable Serial Port+USB+VGA 409496-001 416003-001 for HP C3000 C7000 Blade Server Adapter Cable HDMI USB VGANewegg$18.32
FH HF Serial Port RS485 to Ethernet Device Server Module Support Elfin-EE11 TCP/IP Telnet Modbus TCP Protocol (Whole Set)Amazon$10.90
USB to RS232 Serial Port 9 Pin Cable Serial Port USB Wire With CD For Win98, 98SE, Me, 2000, XP, Mac OS8.6, Win7-32 bitNewegg$22.72
Hp Usb To Serial Port AdapterNewegg$19.99
EC Buying TTL Serial Port to CAN Bus Module TTL to RS232 Module Serial Port to CAN Transparent Transmission Communication Data ModuleAmazon$44.15
HF-2211 Serial Port Server RS232/485/422 to WIFI Ethernet Network Communication Device Converter Server 5 to 36VDCAmazon$199.99
Microcontroller Interface with Computer via Serial PortUdemy$19.00
ZE08-CH2O Formaldehyde Sensor Serial Port OutputAmazon$11.00
ILI9225 LCD Serial Port TFT Display Module Serial Peripheral Interface 2.0 Inch 3V/5.5V 176x220Amazon$22.34
Pcie to Serial Ports RS232 Interface PCI-E PCI Express Card Adapter Industrial Control Computer Expansion CardNewegg$24.42
humminbird as dps y serial port splitter cableNeweggSAVE $6.04
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BYTECC BT-EC1S 1 x Serial Ports ExpressCardNewegg$206.47
desktop label printer, 3.94'/second, serial portNewegg$30.18
SYBA SD-EXP15010 2 x Serial Ports ExpressCardNewegg$14.99
232 to 422 Converter RS422 to Serial Port Passive Communication Module Serial Port to RS232 AdapterNewegg$25.78
SYBA 2 Serial Ports PCI-e Controller Card with Low Profile Bracket Model SI-PEX15037NeweggSAVE $1.00
$37.99$38.99
SIIG Single Serial Port/RS-232 and Single Parallel Port PCIe Card JJ-E20311-S1Newegg$11.99
10pcs RS232 serial port connector DB9 female socket Plug connector 9pin copper RS232 COM socket adapterNewegg$12.99
DB9 COM Serial Port 9Pin RS-232 to RS-485 RS232 to RS485 Adapter Passive ConverterNewegg$53.35
FT2232HL development board FT2232H USB to serial port JTAGNewegg$5.99
IDC 10 / DB9 Male, Motherboard Serial Port Connector cableNewegg$47.38
TJC3224T028_011R 2.8 inch USART HMI with font picture TFT LCD module serial port serial port driverNewegg$39.02
2Pcs Serial Card for Serial Port Low Profile Bkt 389023-003 385985-002 383033-001 9Pin To 15Pin COM Serial Port Cable 611901-001Newegg$10.08
RJ45 to Serial Port Female to DB 9PIN Adapter 8P8C Module Modem ConnectorNewegg$13.00
Slamtec RPLIDAR A2 A3 S1 S2 S2L S3 UART to USB Serial Port Adapter Board (S2 Serial Port Adapter Board)Amazon$22.96and up
HP 3TK82AA Internal Serial Port for HP (600/705/800), BlackStaples & 1 more$19.35
4 Port Rs232 Serial Port Switch Db9-pin COM Port Sharer Suitable For Computer Printer 4 In 1 Out Mt-232-4 SelectorNewegg$13.69
PLC Display, 4 Digit DC 5‑36V Serial Port Digital LED Panel Meter Serial Port Meter Communication Compatible for MODBUSRTU RS485Amazon$12.70
PLC Display LED Serial Port PLC Display PLC Communication Meter Communication 4 Digit Red Digital Tube Display DC5‑36V for MODBUS RTU RS485Amazon$392.00
CI-132 ISA bus RS-422/485 Industrial Serial Port CardNewegg$10.99
USB to DB9 RS232 COM Serial Port Adapter Converter Connector + DriverNewegg$225.80
Davis WeatherLink® Windows - Serial Port f/Vantage Vue & Pro2 SeriesNewegg$32.00
HP Model JD523A 3m X200 V.35 DTE Serial Port CableNewegg$48.75
Intel NUC Front Panel GbE Adapter with RS-232 Serial PortAmazon$39.62
FTDI USB to 4 Ports TTL 5V 3.3V Serial Port Adapter, USB HUB 5-Ports USB Splitter, USB Expansion Multiple Serial PortNewegg$22.13
FTDI USB TTL Serial Port Mini Din Connector Cable for iRobot RoombaNewegg$79.00
For ORICO 6619US3 Serial Port SATA 2.5-inch Mobile Universal Hard Disk Base 3.5-inch USB3.0 Hard Disk CaseNewegg$18.99
USB-C to Serial Port UART Board Module Isolated USB to TTL Module 3.3V TYPE-C Download Cable Upgrade Brush IndustrialNewegg$16.20
2.8 inch TFT Touch Color SPI Serial Port LCD Display ModuleAmazon$17.37
USB to RS485 Serial Port Converter Adapter Cable with FTDI Chip With Driver Compatible usb-rs485-we-1800-bt Supprot win10Newegg$26.89
Raspberry Pi Pico-ETH-CH9121 Module Serial port transparent transmission 10/100MNewegg$104.99
For Dell/Lenovo/HP SATA serial port desktop built-in DVD driveNewegg$19.44
Celestron Computer Interface Serial Cable RS-232 to Standard Serial Port 93920B&H Photo$233.24
C168H/PCI For MOXA 8-port RS-232 Multi-serial Port CardNewegg$19.17
Micro Connectors Internal Serial Port (DB9 Male) Cable to IDC 10 with Bracket (F04-215B)Newegg$1.56
Pasuihcay MAX3232 RS232 Serial Port to TTL Converter Module DB9 Connector W/ 4 Jump CablesAmazon