What is the starting value for an ungraded Computer Error?

An ungraded Computer Error from the Pokémon Japanese Promo set starts at $5.

How much is a PSA 10 graded version worth?

A PSA 10 graded copy of this Japanese Promo is valued at $900.

Is the value difference between ungraded and graded significant?

Yes, the difference is substantial, ranging from $5 for ungraded to $900 for a PSA 10.

Computer Error — Pokémon Japanese Promo Card Value

Name: Computer Error — Pokémon Japanese Promo Card Value
Brand: Pokémon

Pokémon Japanese Promo

What the Computer Error card from Pokémon Japanese Promo is worth — ungraded and graded (PSA 10).

Computer Error value — Ungraded $5 · Grade 9 $44 · PSA 10 $900. Prices updated July 2026.

Set · Pokémon Japanese PromoGame · Pokémon

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Value by grade

Ungraded

8.8×

$44

Grade 9

180.0×

$900

PSA 10

Real sold prices per grade — the PSA 10 premium on this card is 180.0× raw.

Complete-in-box price history

Monthly CIB value, based on sold comps.

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PriceCharting — Computer Error (Pokémon Japanese Promo)$5.03

Item details

Brand: Pokémon
Set: Pokémon Japanese Promo
Game: Pokémon

Computer Error (Pokémon Japanese Promo) card value

An ungraded Computer Error from Pokémon Japanese Promo averages around $5. A Grade 9 copy runs about $44, and a PSA 10 gem-mint commands $900.

What drives the price

Centering, corners, edges, and surface decide a card's grade — and the grade decides the price. The jump from raw to PSA 10 can be 5–20×, so condition is everything. Holos, first editions, and shadowless prints carry the biggest premiums.

Price guide

Sold values by grade vs. what sellers ask today

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Condition	Value	Based on
Ungraded	$5	eBay sold comps
Grade 9	$44	eBay sold comps
PSA 10	$900	eBay sold comps

Frequently asked questions

What is the starting value for an ungraded Computer Error?: An ungraded Computer Error from the Pokémon Japanese Promo set starts at $5.
How much is a PSA 10 graded version worth?: A PSA 10 graded copy of this Japanese Promo is valued at $900.
Is the value difference between ungraded and graded significant?: Yes, the difference is substantial, ranging from $5 for ungraded to $900 for a PSA 10.