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(1)Add 2 native FireWire 800 ports to your computer through a PCI Express expansion slot - pci express firewire card - pci express 1394a - pcie firewire card - pcie 1394 - 4 port firewire 400 cardFREE Shipping$67.98
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(3)Add 4 DIN Rail-mountable RS232 Serial ports to any system through USB - 4 port usb serial adapter - 4 port usb to rs232 - USB to DB9 - USB to serial converter - USB to serial hubFREE Shipping$122.41
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(1)Add 4 external,wall mountable USB 3.0 ports from a single USB connection - Mountable 4 Port USB 3 Hub - 4 Port Rugged USB 3.0 Hub - Metal Chassis - Built-in Surface Mounting Brackets - 4-Port Industrial USB HubFREE Shipping$125.00
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(1)Add 2 DIN Rail-mountable RS232 Serial ports to any system through USB - USB to Serial - USB to RS232 - USB to DB9 - USB to serial Adapter - USB to serial portFREE Shipping$69.31
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(1)Add 2 FireWire800 ports to a laptop through an ExpressCard slot - expresscard firewire - expresscard 1394 - laptop firewire card - expresscard firewire 800 - texas instruments firewire cardFREE Shipping$63.24
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(2)USB - External - 4 USB Port(s)FREE Shipping Orders $45+$23.61
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(160)USB Type A - 4 USB Port(s) - 4 USB 2.0 Port(s) - PC, Mac, ChromeOSFREE Shipping Orders $45+$24.24
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(7)4 x 4-pin Type A USB 2.0 USB - ExternalFREE Shipping Orders $45+$9.65
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(5)Add four rugged external USB 2.0 ports from a single USB connection - usb 2.0 hub - 4 port usb hub - desktop usb hub -external usb hubFREE Shipping$75.41
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(25)USB Type A - External - 4 USB Port(s) - 4 USB 3.0 Port(s) - PC, Mac, ChromeOSFREE Shipping$79.35
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(10)Add 4 external USB 3.0 ports to a low profile or standard computer, through PCI Express - 4 Port PCI Express SuperSpeed USB 3.0 Controller Card Adapter with UASP - SATA Power - USB 3 PCIe Card - USB 3.0 PCI-e Card - 4 Port USB 3.0 PCI Express CardFREE Shipping$47.79
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(3)Add 2 high-speed RS-232 serial ports to your low profile/small form factor computer with a PCI Express expansion slot - pci express serial card - pci-e serial card - pci express RS232 - rs232 card - pci serial adapterFREE Shipping Orders $45+$43.53
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(3)Add 4 USB 2.0 ports to your low profile/small form factor computer through a PCI Express expansion slot - pci express usb 2.0 card - pci-e usb 2.0 card - pcie usb 2.0 cardFREE Shipping$46.22
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(2)4 x Type A Female USB 2.0 USB Downstream, 1 x 5-pin Mini Type B Female USB 2.0 USB Upstream - External"FREE Shipping Orders $45+$15.41
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(11)Add two flushmount USB 3.0 ports to your ExpressCard-enabled laptop - 2 Port Flush Mount 54mm ExpressCard USB 3.0 Card Adapter with UASP Support - ExpressCard USB 3 Controller - USB 3.0 Expresscard - Laptop Card - USB 3.0 Adapter - USB3 CardFREE Shipping Orders $45+$37.46
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(6)Add 4 RS232 serial ports to any PC using a single PCI Express expansion slot - pci express serial card - pci-e serial card - pci express RS232 - rs232 card - pci serial adapterFREE Shipping$111.61
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(1)1 port PCI Express RS232 serial controller card w/16550 UART/ASIX MCS9922CV-AA - Bi-directional speeds 921.6Kbps/port | 256 byte FIFO | Pin 9 pwr out 5v/12v/none - Expansion card w/low profile (Std bracket incl) - Win/LinuxFREE Shipping Orders $45+$44.87
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(2)2-port PCI Express RS232 serial controller card 16550 UART/ASIX MCS9922CV-AA - Bi-directional speeds 460.8Kbps/port | 128 byte FIFO | Pin 9 pwr out 5v/12v/none - Expansion card w/ Std bracket (low profile incl) - Win/LinuxFREE Shipping$46.11
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(2)Add 2x USB 3.0 and 4x USB 2.0 ports to a computer, externally through a single USB 3.0 connection - usb 3.0 hub - 7 port usb hub - powered usb hub - usb 3.0 2.0 hub - charging usb hubFREE Shipping$51.23
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(4)Turn a single USB 2.0 port into 7 external USB 2.0 ports - usb 2.0 hub - 7 port usb hub - desktop usb hub - powered usb hub - external usb hubFREE Shipping Orders $45+$33.34
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(6)Turn a single USB 2.0 port into 4 external USB 2.0 ports - usb 2.0 hub - 4 port usb hub - desktop usb hub - powered usb hub - external usb hubFREE Shipping Orders $45+$25.81
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(6)Add four external SuperSpeed USB 3.0 ports from a single USB connection - usb 3.0 hub - 4 port usb hub - desktop usb hub - superspeed usb 3.0 hub - external usb hubFREE Shipping$47.15
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(1)Add a parallel port and two RS-232 serial ports to your PC through a PCI-Express expansion slot - PCI Express Serial Parallel Card - PCIe Serial Parallel Combo Card Adapter - 2 Port Serial and 1 Port Parallel - Comes with Breakout Cable - Dual Profile - SPP EPP ECPFREE Shipping Orders $45+$41.82
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3 x 9-pin FireWire 800 Female IEEE 1394b FireWire - Plug-in Card - RetailFREE Shipping$61.59