SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    10489, 10471, 9880, 10472, 9885, 10488, 
    9897, 9895, 10467, 9900, 10470, 10466, 
    10477, 9889, 10475, 9890, 10483, 10495, 
    10490, 10469, 9877, 9894, 9891, 10480, 
    9893, 9878, 9886, 9882, 9888, 10482, 
    13091, 12551, 12638, 12634, 12636, 
    12635, 12599, 12627, 12600, 12639, 
    15800, 12595, 12587, 12593, 12620, 
    12623, 12619, 12585, 12616, 12601, 
    12628, 12602, 12640, 12647, 12588, 
    12605, 12606, 12637, 12612, 12613, 
    12641, 12554, 12552, 12642
  )

Query time 0.00085

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_products",
      "access_type": "range",
      "possible_keys": ["PRIMARY"],
      "key": "PRIMARY",
      "key_length": "3",
      "used_key_parts": ["product_id"],
      "rows": 64,
      "filtered": 100,
      "index_condition": "cscart_products.product_id in (10489,10471,9880,10472,9885,10488,9897,9895,10467,9900,10470,10466,10477,9889,10475,9890,10483,10495,10490,10469,9877,9894,9891,10480,9893,9878,9886,9882,9888,10482,13091,12551,12638,12634,12636,12635,12599,12627,12600,12639,15800,12595,12587,12593,12620,12623,12619,12585,12616,12601,12628,12602,12640,12647,12588,12605,12606,12637,12612,12613,12641,12554,12552,12642)"
    }
  }
}