4 port serial cards

SIM800L GPRS GSM Module Micro SIM Card Core Quad-band TTL Serial Port Antenna PCB Wireless WIFI Board for Arduino Smart Phone

4 Ports USB C HUB USB Ethernet Adapter USB Type C To Rj45 Lan Ethernet Adapter 100Mbps Gigabit Network Card USB 2.0 Dock Station for PC Laptop

PCIE To 4 USB3.0 Ports Expansion Card PCI Express To USB3.0 Adapter Card with Large 4Pin Power Interface for Desktop PC

Multifunctional Intelligent 4-in-1 Type-c3.1 Hub, Charging Port USB 2.0 Universal C-adapter OTG Card Reader YSL

NDUP H822 WiFi Router - 4 LAN Ports, Pocket WiFi, LTE SIM Card Modem, 300Mbps, 4G Router, CAT 6

NDUP H823 CPE 4G Router - 4 LAN Ports, Pocket WiFi, Mobile WiFi, 300Mbps, Wireless SIM Card, 3G LTE Modem

NVME M.2 MKEY SSD To PCIE X16 Adapter Card High Speed Raid-Card 4 Port SSD Array Card for Motherboard PCIe X16 Controller Expansion Card

USB C HUB 3.0 Type C 3.1 4 Port Multi Splitter Adapter OTG For Xiaomi Lenovo Macbook Pro 13 15 Air Pro PC Computer Accessories

PCI-E X1 To PCI-E X16 Adapter Card PCI-E Converter Card Expansion Card with 4 USB3.0 Ports Desktop

VAORLO USB C HUB 3.0 Type C 3.1 4 Port Multi USB Splitter OTG Adapter For Xiaomi Lenovo Macbook Pro 13 15 Air Pro Computer Accessories

PCI E To USB 3.0 Expansion Card 4 Ports 5Gbps High Speed Supply Free Transmission USB3.0 Expansion

4 Port POE Extender POE Extender Gigabit Repeater 100/1000Mbps Outdoor Network Card IP55 VLAN 44-57V for POE Camera Wierless AP

Pcie To M2 Adapter Card, Pcie X16 4 Port M2 Nvme M Key Ssd Add On Card M.2 Pci Express X16 Adapter Vroc Raid Expansion Card Chia

4 In 1 Camera Connection Kit SD TF Card Reader for Phone, USB OTG Camera Adapter with Power Port,Hubs Keyboards MIDI Adapter

PC Chassis Fan Hub 10 Port 12V 4 Pin Fan CPU Cooling Fan PWM Hub for Computer Motherboard Serial

4 Port M.2 NVME SSD To PCIE X16 Adapter Converter Card Support 2230/2242/2260/2280 Host Controller Expansion Card LED Indicator

PCI To 4 Port SATA Card 4 Independent Serial ATA Channels 1.5Gbps Transfer PCI SATA Controller for

PCI-E To RS232 4 Port Serial Port Converter PCI Express Controller Adapter Expansion Card

PCIE Serial ATA 3.0 Expansion Card 88SE9215 Chip 4 Port 6 Gbps Adapter Card Hard Disk Conversion

PCIE 1X To 4 Port R232 Serial Expansion Card for AX99100 Main Control Chip DB25 To DB9 R232

PCIE 1X Serial Adapter Card DB25 To 4 Port DB9 R232 PCI Express Serial Card with ASIX AX99100 Chip

2.5 Inch SATA Hard Drive To IDE 44Pin Interface Adapter Card Serial To Parallel Port for Laptop

Surface Pro 9 Hub Expansion 4K HDMI USB C Thunderbolt 4 PD Charging USB Mm Audio Port Card Reader Microsoft Surface Pro 9 Dedicated Docking Station

TXB179 M.2 To 4 Port RS232 Serial Card Adapter High Speed 4 Port RS232 Serial Controller Card for

PCI To 4 Internal SATA Port 1.5Gbps Sil3114 Chipset for RAID Controller Card

PCIE Expansion Card PCI Express X1 To Interface 4 RS232 Serial Ports Wide Applications Adapter Card

Mini MP3 DF Player Module Board MP3 Audio Voice Decode Board for Arduino Supporting TF Card U-Disk IO/Serial Port/AD DFPlayer

GEEKOM A8 Max Mini AMD Ryzen 7 8845HS 8 Thread 32GB DDR5 1TB SSD Dual LAN Port Windows 11 Card Slot Supports Up To 8K 4 Screen Simultaneous Output PC,

A78SD3 Desktop Motherboard 2 Channel DDR3 Memory Serial ATA 3.0 Port PCI E 16X Graphics Card Slot

USB 3.0 Hub Card Reader 3/4 Port USB Desk Splitter Dock Station Memory Card Reader Dock Station for Desktop PC Desk

PCI E To USB 3.0 Expansion Card 5GB Transmission 4 Ports 15Pin Rear USB3.0 Expansion Card For

Expansion Card Adapter Converter PCI E RS232 4 Port Serial Port 2.5Gb S Full Duplex Channel

1x 5 Port(4+1) USB 2.0 PCI Expansion Card For Windows 98SE/Me/2000/XP/NT 4.0/XP

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PCI-E To USB 3.0 Adapter Card: 4-Port High-Speed Desktop Expansion

Surface Pro 9 Hub 4K HDMI Conversion Thunerbolt 4 PD SD TF Card Mm Audio Port Surface Pro 11 Hub Triple Display Pro Surface Pro 9 Adapter, USB-C (8K

4 Port Gigabit Ethernet Card 101001000Mbps 4 RJ45 Ports Remote Wakeup Plug and Play Gigabit 4

PCI E To USB Expansion Card Hub 4 USB2.0 Ports Support Hot Plug Internal USB Hub for Windows 10 8 7

PCI E X8 10G 10 Gigabit 4 Port Fiber Network Card Adapter X710 DA4 for Intel XL710BM1

RAID Card 12Gb/s Data Transfer Rate 2GB Cache Memory PCI Express 3.0 Port 128 Serial ATA Ports LSI

Integrated Digital Modes Interface for Amateur Radio USB Sound Card and Serial Port 2 In 1 Digital

PCI-E 4-port Server Gigabit EtherneT Network Card Adapter For Intel I350 T4 PCI-Ex4

4pcs/lot MAX3232 RS232 To TTL Serial Port Converter Module DB9 Connector MAX232

8111G T4 PCI E X1 4 Port Gigabit Server Network Card 101001000Mbps Gigabit Ethernet Server

PCIe Network Card 10 100 1000Mbps 4 RJ45 Ports 5.0GTS Interface Speed LAN NIC Card for Server

PCIe Gigabit Network Card Professional 8125B 4 Port 2.5G Copper Cable PCI Express Ethernet Adapter

GPRS Board GSM Module Kit MicroSIM Card TTL Serial Port (without Antenna)

PCIe Network Card 4 Port 1000Mbps Transmission PCI Express 1.1 Gigabit Ethernet Card for Server

SE LGI350A 4FB PCI-E X4 4-Port Gigabit Fiber Server Adapter EtherneT Network Card

4 Way USB To TTL Serial Port Module TYPE C USB To TTL Serial Adapter Board with LED Indicator

RS232 Relay Module Opto 4 Channel Serial Port Control Relay Module with 8 Bit MCU SP3232

PCIE 1X To 1394A Card 4 Ports PCIE Firewire 1394A High Speed 2.5Gbps Bandwidth PCIe Firewire Card

PCI To SATA Controller Adapter Card Converter 4 X Serial ATA Ports 1.5Gb/s

SATA3.0 To PCI E Expansion Card Black ABS 4 Port 6G Adapter Hard Drive Card Support for PM

CH9120 Ethernet Network Module 4 Mode 300bps To 150000bps RS232 Serial Port To RJ45 ETH Network

Serial ATA PCI Express Controller Adapter Card 2 Port PCIe To Serial ATA ESATA IDE Controller

NA8111 T4 4 RJ45 Port Gigabit Ethernet PCIe X1 Network Interface Card RTL8111 Chip Server Network

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M.2 NVME To SATA Adapter Card Drive Free Plug and Play M2 KEYM NVME PCIE To 4 Port SATA3.0

PCIE Express Adapter Superspeed 4 Ports PCIE To USB 3.0 Graphics Expansion Card for Desktop PC

2.4" 2.4 Inch 240x320 SPI TFT LCD Serial Port Module 5V/3.3V PCB Adapter Micro SD Card ST7789 LCD Display White LED for Arduino

PCIE To 2 DB9 RS232 Serial Ports 1 DB25 Parallel LPT Port Adapter Card for Desktops

4 Port USB 3.0 PCI Express To USB 3.0 PCIe Card USB3.0 Converter NEC Adapter

Serial To Ethernet Network Module 4 Mode TTL To RJ45 Port Single Chip Microcomputer Networking

PCIE 1 To 4 Riser Card Blue Plug In Design 4 USB 3.0 Ports X4 X8 X16 Graphics Interface Adapter

MP3 Player Module UART Serial Port Control Music Play Board with Memory Card Socket

PCIE 2 Port Serial Expansion Card RS232 9PIN WCH382L Chip Adapter for Windows9898SEOS X

Mini PCIe Serial Parallel Expansion Card 6Gbps PCI Express To Printer LPT Port 2 Port RS 232 DP9

Dual Mode SATA for SAS 4-Port Disk Short Bezel Array Card LSi 9212-4i 6GB for Windows 10 8 7IT

M.2 Mkey PCIe To 4 Ports PCIe X1 Expansion Card ASM1184E Main Controller 1 To 4 PCI E Adapter Card

Serial Data Logger Memory Card Storage Card Recorder Module FAT32 EXFAT Formats Serial Port Data

USB 3.0 PCI-E Expansion Card Adapter External 2 Port USB3.0 Hub Internal 19 Pin Header PCIE Card 4 Pin IDE Power Connector

PCIE Expansion Card X4 X8 X16 To 5 Serial ATA 3.0 3.1 Port 6Gbps Plug and Play Fast Heat

M.2 PCIE Adapter PCIe 4.0 X16 To 4 Port M.2 NVMe with Cooling Fan NVME Raid Card 4x32Gbps M.2 SSD

4 Ports 5Gbps USB 3.0 PCI Express Expansion Card for Windows 11 10 for Server 2012 for Linux Built

USB 3.0 PCIE Expansion Card PH64 2U4U VL805 Chip 5Gbps Transmission 4 Port USB Expansion Card for

Mini PCIe Combo Serial Parallel Expansion Card 6Gbs 2 RS 232 Port 1 DP25 Pin PCI Express To Printer

PCIE 1 To 4 Riser Card Black 4 USB 3.0 Ports Plug In Design X4 X8 X16 Graphics Interface Adapter

USB 3.0 PCI Express Expansion Card Support for Windows 2000 System 5Gbps 4 Ports Ultra High Speed

PCIE NIC Network Card 4 RJ45 Ports PCI Express Ethernet LAN Adapter for Windows Server for Linux

4 Port Gigabit Ethernet Card Excellent Heat Dissipation 2.5G Gigabit Quad RJ45 Port NIC Card for

ASR 71605 Array Card 1GB Cache 6GBs PCIe X8 High Performance 4 Port 8643 SAS RAID Controller Card

PCIe X1 Network Card 4 RJ45 Port 1000M High Speed RTL8111H Chip Desktop Gigabit Network Card for

4 Port PCIE Network Card 2.5G High Speed for I210 Chip 10010002500Mbps PCIE Gigabit Network Card