Computer Error
SetWizards Black Star Promos
Year1999
RarityPromo
Number#16
Ungraded
$5.59+$0.09
14 sales · last Jul 5, 2026
PSA 8
$25.00
1 sales · last May 19, 2026
PSA 9
$30.00
3 sales · last Jun 11, 2026
PSA 10
$142.50
1 sales · last May 25, 2026
Computer Error price guide
Computer Error is a collectible Pokémon card from the Wizards Black Star Promos expansion (1999). Setlot tracks 19 recorded sales for this card across 4 grade tiers, 18 of them in the last 90 days. PSA 10 copies have a 90-day median of $142.50. Ungraded copies currently trade around $5.59. The top grade commands 25× the ungraded price — grading meaningfully changes what this card is worth. The highest sale on record is $142.50 (PSA 10, May 25, 2026). 27 listings are live right now with asks from $3.99.
Price history
Grading premium
Median graded price vs. the ungraded copy ($5.59) — a rough read on whether grading pays off.
PSA 8
4.5×
$25.00
PSA 9
5.4×
$30.00
PSA 10
25×
$142.50
Live listings
Search on eBay ↗Lowest asks per grade. Older listings may have ended — “seen” is when we last confirmed each one.
| Grade | Listing | Marketplace | Seen | Price |
|---|---|---|---|---|
| Ungraded 20 tracked | Computer Error Wizards Black Star Promos 16/53 MP retromartgames | eBay | 1mo ago | $3.99↗ |
| 2000 POKEMON BLACK STAR PROMO #16 COMPUTER ERROR (ROCKET'S SECRET MACHINE) cohrpenguin | eBay | 1mo ago |
Recent sales by grade· last 90 days
| Grade | Sold | Median | Range |
|---|---|---|---|
| Ungraded | 13 | $5.59 | $3.00 – $49.99 |
| PSA 8 | 1 | $25.00 | $25.00 |
| PSA 9 | 3 | $30.00 | $22.00 – $40.00 |
| PSA 10 | 1 | $142.50 | $142.50 |
Recent sales
| Date | Grade | Title | Sold on | Price |
|---|---|---|---|---|
| Jul 5, 2026 | Ungraded | 1999 Pokemon Wizards Black Star Promos Computer Error #16↗ | eBay | $4.25 |
| Jun 28, 2026 | Ungraded | 1999 Pokemon Wizards Black Star Promos Computer Error #16↗ | eBay | $6.50 |
| Jun 28, 2026 | Ungraded | 1999 Pokemon Wizards Black Star Promos Computer Error #16↗ | eBay | $3.00 |
| Jun 27, 2026 | Ungraded | 2000 POKEMON WIZARDS BLACK STAR PROMO POKEMON LEAGUE #16 COMPUTER ERROR↗ | eBay |
