Is the LEGO Technic 9771-1 rare for collectors?

Yes, being a 1989 Technic piece, the 9771-1 is considered a rare component for specialized collectors.

How many pieces are in the 9771-1 set?

The LEGO Interface Card and Cable for TC Logo (9771-1) contains exactly 3 pieces.

This item is part of the LEGO Technic theme, originally released in 1989.

Name: LEGO Interface Card and Cable for TC Logo - IBM compatible (9771-1)
Brand: LEGO

Technic

Technic · 1989

Theme · TechnicPieces · 3Set Number · 9771-1Year · 1989

Used

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New / Sealed

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Is the LEGO Technic 9771-1 rare for collectors?: Yes, being a 1989 Technic piece, the 9771-1 is considered a rare component for specialized collectors.
How many pieces are in the 9771-1 set?: The LEGO Interface Card and Cable for TC Logo (9771-1) contains exactly 3 pieces.
What theme does the 9771-1 belong to?: This item is part of the LEGO Technic theme, originally released in 1989.