Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
DEC KDA50-QA Q-Bus Sdi Controller
- Q-Bus interface for DEC systems.
- Provides Serial Data Interface (SDI) functionality.
- Enables serial communication with peripherals.
- Designed for legacy DEC environments.
- Reliable data transfer over serial lines.
- Specific model: KDA50-QA.
KDA50-QA isn't on our shelf today — we source it to order. Request a quote and we'll confirm price and lead time within one business day.
Key specifications
See full specs ↓- Bus Type
- Q-Bus
- Interface Type
- SDI (Serial Data Interface)
- Brand
- DEC
- Model
- KDA50-QA
Product details
The DEC KDA50-QA is a Q-Bus SDI controller, designed for use with Digital Equipment Corporation's computer systems. It provides Serial Data Interface (SDI) capabilities, enabling communication with various peripheral devices over serial connections.
Technical Information
| Bus Type | Q-Bus |
| Interface Type | SDI (Serial Data Interface) |
Additional Specifications
| Brand | DEC |
| Model | KDA50-QA |
Description
The DEC KDA50-QA Q-Bus SDI Controller is a specialized hardware component developed by Digital Equipment Corporation for its line of Q-Bus based computer systems. This controller's primary function is to provide a robust Serial Data Interface (SDI), allowing the host system to communicate with a variety of external devices that utilize serial communication protocols. This was particularly important in environments where direct, high-speed serial connections were required for specialized peripherals or networking equipment. Designed to integrate directly into the Q-Bus architecture, the KDA50-QA ensures efficient data flow and compatibility with the operating systems and drivers common to DEC's PDP-11 and early VAX systems. The SDI capability offered by this card typically supports standard serial communication parameters, enabling it to interface with modems, terminals, printers, and other serial devices that were prevalent during the era of Q-Bus computing. Its inclusion was often essential for expanding the I/O capabilities of these systems beyond their built-in ports. In summary, the DEC KDA50-QA represents a key piece of interface technology for users of DEC's Q-Bus computers. It facilitated essential serial communications, extending the functionality and connectivity options of these powerful machines. For system integrators and maintainers of legacy DEC hardware, this controller remains a significant component for ensuring operational continuity and peripheral support.
Condition: Refurbished
Free U.S. ground shipping
Typically 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
Buying 10+ units?
Get volume pricing and availability for KDA50-QA.

