SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    9730, 9731, 9732, 9733, 10181, 9734, 
    9735, 9724, 10655, 10654, 10605, 10604, 
    9873, 10653, 10646, 10645, 10647, 10648, 
    10649, 10726, 10650, 9789, 10547, 9796, 
    9874, 9875, 9879, 9887, 9941, 9942, 
    9943, 9944, 10744, 10745, 10746, 10739, 
    10740, 10741, 10742, 10734, 10735, 
    10736, 10737, 10738, 10688, 10727, 
    10728, 10729, 10730, 10731, 10732, 
    10733, 10713, 10714, 10715, 10716, 
    10717, 10718, 10719, 10720, 10721, 
    10722, 10723, 10704
  )

Query time 0.00098

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 (9730,9731,9732,9733,10181,9734,9735,9724,10655,10654,10605,10604,9873,10653,10646,10645,10647,10648,10649,10726,10650,9789,10547,9796,9874,9875,9879,9887,9941,9942,9943,9944,10744,10745,10746,10739,10740,10741,10742,10734,10735,10736,10737,10738,10688,10727,10728,10729,10730,10731,10732,10733,10713,10714,10715,10716,10717,10718,10719,10720,10721,10722,10723,10704)"
    }
  }
}