2-port USB PCIe card - ASM3142 host controller for 2x USB-A ports up to 10Gbps/port - USB 3.1/3.2 Gen 2 PCI Express 3.0 x2 expansion card - Add-on adapter card supports Multiple Ins - Opt. SATA power - Full or low-profile bracket - Win/Linux/macOS

8-Port PCI Express RS232 serial adapter card 16C1050 UART 15kV ESD - Bi-directional speed 921.6Kbps/port; 256byte FIFO - Expansion controller card; Pin 9 power 5v/12v/none, 3A max - DB62 to DB9 cable w/Hex nuts - Windows only; Systembase SB16C1058PCI

1-Port USB 3.2 Gen 2x2 PCIe card with 1x USB Type-C Port - Up to SuperSpeed 20Gbps - USB-C PCI Express host controller card supports Multiple INs / UASP - Up to 15W of power - Full or low-profile PCI-e x4 slot add-on expansion card - Win/Linux/macOS

USB C Gigabit Ethernet adapter securely connects to wired network (LAN) using RJ45 on USB C or Thunderbolt 3 device - White USB C NIC adds extra USB 3.1 Type-A Port - Realtek RTL8153 - Compact - Apple MacBook Pro/ Surface/Chromebook - 2 Yr Warranty

2-port PCI Express RS232 serial controller card 16950 UART/ASIX AX99100 - Bi-directional speeds 921.6Kbps/port / 256 byte FIFO / 9th data bit - Pin 9 pwr out 5v/12v/none w/up to 2A total - Expansion card w/ Std bracket (low profile incl) - Win/Linux

2.5GbE NBASE-T USB C to Ethernet adapter/NIC - Securely connects to networks over CAT 5e/RJ45/LAN cable - 3 speed 2.5G/1G/100 Mbps - Auto-Negotiation for max bandwidth - Works w/USB 3.0/3.1 Type C/TB3 /MacBook Pro/Mac Pro/Surface Book/iPhone 15 & up

2-port PCI Express RS232 serial controller card w/16950 UART/ASIX AX99100 - Bi-directional speeds 921.6Kbps/port / 256 byte FIFO / 9th data bit - Pin 9 pwr out 5v/12v/none w/up to 2A total - Expansion card w/low profile bracket (Std incl) - Win/Linux

1 port PCI Express RS232 serial controller card w/16950 UART/ASIX AX99100 - Bi-directional speeds 921.6Kbps/port / 256 byte FIFO / 9th data bit - Pin 9 pwr out 5v/12v/none w/up to 2A total - Expansion card w/low profile (Std bracket incl) - Win/Linux

Add four Gigabit Ethernet ports to a client, server or workstation through one PCI Express slot - 4-Port PCI Express Gigabit network adapter card - Quad-port Gigabit NIC - Network card w/ 4x 10/100/1000 RJ45 ports - Full-Duplex Flow Control support

Add Gigabit Ethernet connectivity and two USB 3.0 ports to your laptop or tablet through a single USB port - USB Ethernet NIC network adapter with native driver support (Windows, Mac, Chrome OS) - USB network adapter and charging hub w/ Realtek chip

Add two 10GbE SPF+ slots to server or workstation for fast high-bandwidth connectivity -2-port 10G fiber network card with open SFP+ -PCIe x2 10G NIC with Intel 82599 chipset -Cost-effective 10Gb Ethernet fiber network card with Intel performance

Add four RS232 serial ports to any notebook or desktop computer using a single USB port - USB to Serial - USB to RS232 - USB to DB9 - USB to serial Adapter - USB to serial port