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9751 LEGO Dacta Technic Control Lab Serial Interface & Adapter thumbnail image

9751 LEGO Dacta Technic Control Lab Serial Interface & Adapter
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9751 LEGO Dacta Technic Control Lab Serial Interface & Adapter
  • Control Lab Serial Interface & Adapter thumbnail

LEGO 9751 Control Lab Serial Interface & Adapter is a vintage Dacta set from 1995 valued at $174 for new and sealed sets, up 335% from an original retail price of $39.95. Annual appreciation has averaged 3.23% since release. On the used market, values range from $123 to $162 based on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Control Lab Serial Interface & Adapter since June 2016. High accuracy
LEGO 9751 Control Lab Serial Interface & Adapter is a Dacta Technic educational accessory released in 1995, containing 2 pieces. It provides a serial (RS-232) connection and power adapter for the LEGO Dacta Control Lab system, enabling computer control of compatible Technic components. The unit was intended for classroom and lab use with LEGO’s educational software and hardware to interface with motors and sensors.

A new and sealed Control Lab Serial Interface & Adapter is currently valued at around $174, with annual growth of approximately 2%. The average used price is $135 for those in good overall condition. Based on current trends, this set could be valued near $179 within the next year.
It has been a few months since we last saw 9751 Control Lab Serial Interface & Adapter available in either primary or secondary markets. Its true value may be slightly higher than our current estimate. The last brand new Control Lab Serial Interface & Adapter was sold on eBay.

For Sale (New/Sealed)

There are currently no new/sealed listings available for 9751 Control Lab Serial Interface & Adapter at this time.
All regions

For Sale (Used)

 (US) Used - Technic Educational & Dacta: (9751) Control Lab Serial Interface
$115.00
--14.8%
(US) Used - Technic Educational & Dacta: (9751) Control Lab Serial Interface with Cable
$135.00
(AU) Used - Tested and Working - Rare and Hard to find - With Original Adapter and Manual/... $166.46

Sets in Dacta / Technic

9609 Technology Resource Set

Theme / Subtheme Dacta / Technic
Year 1995
Pieces 1,718
Availability Retired
9609 LEGO Dacta Technic Technology Resource Set
Retail $149.95
Value $1,027.69
Growth  +585.4%
Annual growth 6.4%

9701 Control Lab Building Set

Theme / Subtheme Dacta / Technic
Year 1995
Pieces 557
Availability Retired
9701 LEGO Dacta Technic Control Lab Building Set
Retail $149.00
Value $412.95
Growth  +177.1%
Annual growth 2.5%

9605 4.5V Technic Resource Set

Theme / Subtheme Dacta / Technic
Year 1995
Pieces 268
Availability Retired
9605 LEGO Dacta 4.5V Technic Resource Set
Retail $74.99
Value $474.00
Growth  +532.1%
Annual growth 6.1%

9938 Conveyor Belt Links

Theme / Subtheme Dacta / Technic
Year 1995
Pieces 38
Availability Retired
9938 LEGO Dacta Technic Conveyor Belt Links
Retail $6.25
Value $14.88
Growth  +138.1%
Annual growth 7.8%

9891 Angle Sensor

Theme / Subtheme Dacta / Technic
Year 1995
Pieces 1
Availability Retired
9891 LEGO Dacta Technic Angle Sensor
Retail $24.99
Value $39.12
Growth  +56.5%
Annual growth 1.8%

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Control Lab Serial Interface & Adapter Reviews

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About Dacta Technic

The LEGO Dacta Technic theme is a segment of the LEGO Dacta (later rebranded as LEGO Education) line, focusing on the Technic system of LEGO building. These sets are designed for educational contexts, emphasizing principles of mechanics, engineering, and applied science. Through specialized pieces like gears, axles, and beams, the Dacta Technic theme offers a hands-on approach to understanding complex mechanical concepts, making it a resource for classrooms and other educational settings aiming to teach STEM principles.

Technic consists of 30 sets that ran from 1984 to 2003. As of today, 1034 Teachers Resource Set is the most valuable Technic set with an estimated new/factory sealed value of $1,145.
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