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Blue USB to DB9 serial adapter cable, 1.5 ft long, two connectors

Cables To Go

Cables To Go 26886 USB to DB9 Serial Cable 1.5 ft Blue

SKU CH-MRMM-W143Z MPN 26886

Connects legacy DB9 serial devices to a USB port with over 230 kbps transfer and no IRQ conflicts

  • Connector count2
  • Connector detailsUSB to DB9
  • Product typeCable Connectors
  • Product colorBlue
  • Overall length1.5 ft (0.46 m)
  • DetailsSupports automatic handshake mode Data transfer rate: Over 2
  • Connect legacy serial gear via USB with over 230 kbps throughput
  • Short 1.5 ft cable keeps desk clutter minimal at 0.45 metres
  • Zero IRQ usage avoids conflicts when multiple serial devices are attached
  • 96 byte buffers each way maintain steady upstream and downstream flow
  • Windows 8 compliant driver support ensures modern OS compatibility

USB to DB9 serial adapter

The Cables To Go 26886 adapter converts a USB port into a traditional RS-232 DB9 serial connection. It is designed for users who need to attach legacy devices such as PDAs, digital cameras, modems or ISDN terminal adapters to a modern PC lacking native serial ports. The cable measures 1.5 ft and uses no IRQs, avoiding conflicts when multiple serial devices are connected.

Passive cable thermals and power

As a passive USB-powered cable, the adapter draws minimal current from the host port and generates no measurable heat during normal operation. No active cooling or external power supply is required, so acoustic noise is effectively zero. The 96 byte buffers for upstream and downstream flow help maintain steady data movement at rates over 230 kbps.

Sustained data transfer behaviour

Under continuous load the adapter maintains its rated throughput without thermal throttling because there are no active components to overheat. Automatic handshake mode and remote wake-up support keep the link stable during long sessions such as industrial logging or legacy firmware updates. The fixed 1.5 ft length limits placement flexibility compared with the available 5 ft version.

How it compares

Measured against everything we stock in RS-232 Serial Cables, at today’s prices. Recalculated every night.

Price $23.99
Typical for this category: the median of 93 items is $21.99.

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Specifications

Product
Brand nameC2G
Model name26886
Product typeCable Connectors
Product colorBlue
Ports & slots
Connector count2
Connector detailsUSB to DB9
Size & build
Overall length1.5 ft (0.46 m)
Shipping weight0.07 kg
Package size152 × 127 × 32 mm

Questions about this item

How do I install the 26886 USB to DB9 cable, and what step is often missed?

Plug the USB connector into the PC, connect the DB9 end to the serial device, then install the driver so the virtual COM port appears in Device Manager; skipping the driver install is the common mistake.

What maintenance or replacement will the 1.5 ft adapter need over time?

The cable itself has no moving parts or firmware to update; only the USB or DB9 connectors may wear after repeated mating cycles, so replace the adapter if the connectors become loose or pins bend.

What limit appears first when the 26886 runs sustained transfers at over 230 kbps?

The 96 byte upstream and downstream buffers fill first; once full, flow control throttles the link, so sustained throughput is limited by buffer depth rather than the signalling rate.

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