Serial

Cisco NIM-1T. Compatibility: Cisco 4451-X. Width: 3.5" (88.9 mm), Depth: 7.24" (183.9 mm), Height: 1.25" (31.8 mm). I/O ports: Serial WAN

Cisco 2-Port A/S Serial HWIC Front Panel. Host interface: Serial

Brainboxes ES-701. Output interface: Serial, Serial interface type: RS-232. Product color: Black, Certification: EMC CE, WEEE, TAA, AEO C-TPAT. FIFO (First In, First Out): 2048 B. Power consumption (typical): 1.35 W. Width: 4.84" (123 mm), Depth: 8.46" (215 mm), Height: 1.34" (34 mm)

Cisco HWIC-2A/S. Product color: Gray, Material: Metal

Brainboxes PX-260. Host interface: PCIe, Connector(s): DB9. Width: 3.74" (95 mm), Depth: 0.787" (20 mm), Height: 3.15" (80 mm)

Digi 70001999

C2G Lava Octopus 16550 DB9 Serial Card PCI 8-Port. Host interface: PCI. Weight (imperial): 1.44 lbs

StarTech.com ICUSB23216FD. Host interface: USB 2.0 Type-B, Hub interfaces: Serial. Data transfer rate: 480 Mbit/s, Product color: Black, Housing material: Steel. Power consumption (max): 36 W, Input voltage: 100 - 240 V, Input current: 1.5 A. Windows operating systems supported: Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10..., Mac operating systems supported: Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High..., Server operating systems supported: Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows.... Width: 4.72" (120 mm), Depth: 16.9" (430 mm), Height: 1.77" (45 mm)

StarTech.com ICUSB234858I. Host interface: USB 2.0, Hub interfaces: Serial. Product color: Black, Housing material: Steel, LED indicators: Power. Power source type: AC, Power consumption (typical): 36 W, Input voltage: 100 - 240 V. Windows operating systems supported: Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10..., Mac operating systems supported: Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High..., Server operating systems supported: Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows.... Width: 5.04" (128 mm), Depth: 8.62" (219 mm), Height: 0.984" (25 mm)

Brainboxes Ethernet/RS-232 Adapter. Connectivity technology: Wired, Host interface: RS-232, Interface: Ethernet. Maximum data transfer rate: 1 Mbit/s. Product color: Multicolor

Brainboxes ES-257. Connectivity technology: Wired, Host interface: RS-232, Interface: Ethernet. Maximum data transfer rate: 100 Mbit/s. Product color: Multicolor

C2G Lava Quattro-PCI Quad 16550 DB9 Serial Card PCI 4-Port. Host interface: PCI. Connectivity technology: Wired, Weight (imperial): 0.5 lbs