SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    10246, 10247, 10248, 10249, 10250, 10251, 
    10252, 10253, 10254, 10255, 10256, 
    10257, 10258, 10259, 10260, 10261, 
    10425, 10426, 10427, 10428, 10429, 
    10430, 10431, 10432, 10433, 10434, 
    10435, 10436, 10437, 10438, 10439, 
    10440, 10441, 10442, 10443, 10444, 
    10522, 9803, 9805, 9797, 9800, 9799, 
    9798, 9801, 9802, 9806, 9804, 9809, 
    9810, 9811, 9812, 9807, 9808, 9905, 
    10168, 10041, 10643, 10606, 10094, 
    10097, 12703, 10177, 10175, 9813
  )

Query time 0.00349

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 (10246,10247,10248,10249,10250,10251,10252,10253,10254,10255,10256,10257,10258,10259,10260,10261,10425,10426,10427,10428,10429,10430,10431,10432,10433,10434,10435,10436,10437,10438,10439,10440,10441,10442,10443,10444,10522,9803,9805,9797,9800,9799,9798,9801,9802,9806,9804,9809,9810,9811,9812,9807,9808,9905,10168,10041,10643,10606,10094,10097,12703,10177,10175,9813)"
    }
  }
}