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CH348 - USB to 8-port serial chip
CH340 - USB to serial chip
SPIF301 - USB to Serial-ATA Controller
TUSB2551 - ADVANCED UNIVERSAL SERIAL BUS TRANSCEIVER
CY7C65215A - USB-Serial Dual-Channel Bridge
SPIF215A - USB to Serial AYA Bridge
MCS7720 - USB 1.1 to Dual Serial Controller
USB1T1103 - Universal Serial Bus Peripheral Transceiver
USB1T1104 - Universal Serial Bus Peripheral Transceiver
AX78120 - USB 2.0 to Dual Serial Ports Controller
MM232R - USB Serial UART Development Module
PDIUSBD11N - USB device with serial interface
PDIUSBP11D - Universal Serial Bus transceiver
PL2303HX - USB to Serial Bridge Controller
USB1T11A - Universal Serial Bus Transceiver
USBN9602 - USBN9602 (Universal Serial Bus) Full Speed Function Controller With DMA Support
PL-2303 - USB to Serial Bridge Controller
KL5KUSB105 - USB to 4 Serial Ports
TTL-232R-PCB - TTL to USB Serial Converter PCB
TUSB2136 - Universal Serial Bus Compound Hub Controller