SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    10071, 10067, 10051, 10060, 10055, 10043, 
    10068, 10065, 10061, 10050, 10056, 
    10044, 10069, 10066, 12671, 12672, 
    15779, 12673, 12674, 12675, 12676, 
    12677, 12678, 12679, 9687, 10024, 10025, 
    10026, 10027, 10028, 10029, 10030, 
    10031, 10032, 10033, 10034, 10035, 
    10036, 10037, 10038, 10039, 10040, 
    10756, 10757, 10758, 10397, 10398, 
    10399, 10400, 10401, 10402, 12700, 
    12546, 12633, 12573, 12548, 12580, 
    12576, 12565, 12567, 12549, 12581, 
    12557, 12558
  )

Query time 0.00130

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 (10071,10067,10051,10060,10055,10043,10068,10065,10061,10050,10056,10044,10069,10066,12671,12672,15779,12673,12674,12675,12676,12677,12678,12679,9687,10024,10025,10026,10027,10028,10029,10030,10031,10032,10033,10034,10035,10036,10037,10038,10039,10040,10756,10757,10758,10397,10398,10399,10400,10401,10402,12700,12546,12633,12573,12548,12580,12576,12565,12567,12549,12581,12557,12558)"
    }
  }
}