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"usb serial adapter"
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DB9 null modem adapter male to female slimline data transfer serial port adapter 10 Pack
Limited time offer, ends 11/15
DB9 null modem adapter male to female slimline data transfer serial port adapter 5 Pack
Limited time offer, ends 11/15
$27.58
Free Shipping
PCIe Combo Serial Parallel Expansion Card PCI Express to Printer LPT Port RS232 Com Port Adapter IEEE 1284 Controller Card WCH382 Chip for Desktop PC Windows 10 with Low Bracket
Limited time offer, ends 12/12
$40.78
Free Shipping
USB 3.0 9PIN to USB2.0 9PIN Front Panel Socket Adapter Card,USB 3.0 Motherboard 19PIN to Dual 9-PIN Interface Expansion Card
Limited time offer, ends 11/15
$20.88
Free Shipping
Industrial Grade PCI express 4 ports Serial card PCI-e Multi RS232 DB9 COM port adapter 5VDC 12DV power PCIe low profile bracket
Limited time offer, ends 12/02
$90.89
Free Shipping
4 Port USB 3.0 PCIe Card 5Gpbs, RIITOP PCI-e to USB3.0 Expansion Adapter Card Controller, Low Profile Bracket, for Windows 11, 10, 8.x, 7, Vista, XP Desktop PCs
Limited time offer, ends 11/18
$21.99
Free Shipping
USB 3.2 GEN2 TYPE-E Expansion Card PCle X4 Siongsoo ASM3142 20Gbps Adapter Card
Limited time offer, ends 11/15
$86.88
Free Shipping
