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Black Box 4U DB9 A/B switch card latching GSA TAA video accessory

Black Box Corporation

Black Box Corporation 4U DB9 A/B Switch Card Latching GSA TAA video accessory

SKU CH-K65B-1K3AS

A DB9 A/B latching switch card retains its connection state during power loss and supports local LED status, manual switching, and remote control via dry contact closure, RS232.

  • Latching design retains DB9 connection during power loss
  • Switch between two DB9 links from a single card slot
  • Local LED status and manual switching for immediate control
  • Remote management via dry contact, RS-232 and Ethernet
  • Fits 16 switch cards in a 4U chassis for scalable deployment

4U DB9 A/B Switch Card

The Black Box Corporation 4U DB9 A/B Switch Card is a latching module that switches between two DB9 connections while retaining the active link if power is lost. It occupies a single slot in a compatible gang-switch chassis and is suited for administrators who need secure, manual or remote path selection for serial links in critical infrastructure.

Verify chassis slot availability and controller

Before ordering, confirm the target gang-switch chassis has a free single-width slot and that a controller card is installed to provide external power and remote-management interfaces. The system reserves one slot for future use, leaving 16 slots for switch cards, so ensure the remaining capacity matches your planned port count.

LED status and multi-protocol remote control

Local LED indicators and a manual toggle give immediate visual confirmation and hands-on switching at the rack. Remote operation is supported through dry-contact closure, RS232, and Ethernet, allowing integration with monitoring software or automated failover scripts without additional protocol licences.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $229.99
Pricier than about 90% of the 3,838 comparable items (median $41.99).

Specifications

No published specifications for this item yet.

Questions about this item

What comes in the box and what must I buy separately?

The DB9 A/B switch card is supplied as a single latching module. A controller card, external power supply and chassis are required to operate it and are sold separately.

Which version of the switch card should I choose for my setup?

This card provides a single latching DB9 A/B switch using one slot; select it when you need to toggle two DB9 links and retain the connection if power fails.

What does the 16-slot capacity mean once the card is installed?

One slot is reserved, so a fully populated chassis holds 16 switch cards, each managing one DB9 A/B path with LED status and manual override.

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