SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    4021, 6321, 6320, 4022, 5718, 7582, 3633, 
    3630, 3631, 2914, 7429, 2913
  )

Query time 0.00026

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "8.41"
    },
    "table": {
      "table_name": "cscart_products",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "product_id"
      ],
      "key_length": "3",
      "rows_examined_per_scan": 12,
      "rows_produced_per_join": 12,
      "filtered": "100.00",
      "index_condition": "(`dbggbern`.`cscart_products`.`product_id` in (4021,6321,6320,4022,5718,7582,3633,3630,3631,2914,7429,2913))",
      "cost_info": {
        "read_cost": "7.21",
        "eval_cost": "1.20",
        "prefix_cost": "8.41",
        "data_read_per_join": "61K"
      },
      "used_columns": [
        "product_id",
        "product_code",
        "product_type",
        "status",
        "company_id",
        "list_price",
        "amount",
        "weight",
        "length",
        "width",
        "height",
        "shipping_freight",
        "low_avail_limit",
        "timestamp",
        "updated_timestamp",
        "usergroup_ids",
        "is_edp",
        "edp_shipping",
        "unlimited_download",
        "tracking",
        "free_shipping",
        "zero_price_action",
        "is_pbp",
        "is_op",
        "is_oper",
        "is_returnable",
        "return_period",
        "avail_since",
        "out_of_stock_actions",
        "localization",
        "min_qty",
        "max_qty",
        "qty_step",
        "list_qty_count",
        "tax_ids",
        "age_verification",
        "age_limit",
        "options_type",
        "exceptions_type",
        "details_layout",
        "shipping_params",
        "facebook_obj_type",
        "parent_product_id",
        "buy_now_url",
        "cito_id",
        "pos_barcode",
        "pos_availabilty",
        "presell_amount",
        "purchase_price",
        "supplier_sku",
        "avail_in_days",
        "galaxus_price",
        "galaxus_exclude",
        "gs_exclude",
        "datahub_amount",
        "datahub_exclude",
        "ean_code",
        "expected_restock_amount",
        "datahub_extra_1",
        "datahub_extra_2",
        "low_stock_threshold",
        "galaxus_min_qty"
      ]
    }
  }
}

Result

product_id product_code product_type status company_id list_price amount weight length width height shipping_freight low_avail_limit timestamp updated_timestamp usergroup_ids is_edp edp_shipping unlimited_download tracking free_shipping zero_price_action is_pbp is_op is_oper is_returnable return_period avail_since out_of_stock_actions localization min_qty max_qty qty_step list_qty_count tax_ids age_verification age_limit options_type exceptions_type details_layout shipping_params facebook_obj_type parent_product_id buy_now_url cito_id pos_barcode pos_availabilty presell_amount purchase_price supplier_sku avail_in_days galaxus_price galaxus_exclude gs_exclude datahub_amount datahub_exclude ean_code expected_restock_amount datahub_extra_1 datahub_extra_2 low_stock_threshold galaxus_min_qty
2913 5706569110574 P A 1 10.90 1 0.000 0 0 0 0.00 0 1669403601 1761829096 0 N N N B N R Y N N Y 10 1677193200 S 0 0 0 0 6 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 0 N 0 6.55 0 0.00 0 0 0 0 0 0
2914 5706569110567 P A 1 9.90 30 0.000 0 0 0 0.00 0 1669403745 1758719799 0 N N N B N R Y N N Y 10 1677193200 S 0 0 0 0 6 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 0 N 0 6.55 0 0.00 0 0 0 0 0 0
3630 5706569150594 P A 1 11.90 29 0.000 0 0 0 0.00 0 1686235627 1758719544 0 N N N B N R Y N N Y 10 0 S 0 0 0 0 6 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 0 N 0 6.55 0 0.00 0 0 0 0 0 0
3631 5706569150570 P A 1 11.90 39 0.000 0 0 0 0.00 0 1686235766 1759322115 0 N N N B N R Y N N Y 10 0 S 0 0 0 0 6 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 0 N 0 6.55 0 0.00 0 0 0 0 0 0
3633 5706569150587 P A 1 10.90 22 0.000 0 0 0 0.00 0 1686236677 1758719112 0 N N N B N R Y N N Y 10 0 S 0 0 0 0 6 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 0 N 0 6.55 0 0.00 0 0 0 0 0 0
4021 5706569160760 P A 1 14.90 7 0.000 0 0 0 0.00 0 1693569817 1757496814 0 N N N B N R Y N N Y 10 1693519200 S 0 0 0 0 6 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 0 N 0 11.75 0 0.00 0 0 0 0 0 0
4022 5706569160852 P A 1 14.90 4 0.000 0 0 0 0.00 0 1693570061 1732358439 0 N N N B N R Y N N Y 10 1693519200 S 0 0 0 0 6 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 0 N 0 11.75 AT-16085 0 0.00 0 0 0 0 0 0
5718 5706569121181 P A 1 14.90 1 0.000 0 0 0 0.00 0 1723657896 1757349135 0 N N N B N R Y N N Y 10 0 S 0 0 0 0 6 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 0 N 0 11.55 0 0.00 0 0 0 0 0 0
6320 5706569161286 P A 1 12.90 7 0.000 0 0 0 0.00 0 1737221736 1759403941 0 N N N B N R Y N N Y 10 0 S 0 0 0 0 6 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 0 N 0 8.35 0 0.00 0 0 0 0 0 0
6321 5706569161392 P A 1 12.90 18 0.000 0 0 0 0.00 0 1737365463 1759323930 0 N N N B N R Y N N Y 10 0 S 0 0 0 0 6 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 0 N 0 8.35 0 0.00 0 0 0 0 0 0
7429 5706569118259 P A 1 11.90 16 0.000 0 0 0 0.00 0 1755009957 1759324236 0 N N N B N R Y N N Y 10 1677193200 S 0 0 0 0 6 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 0 N 0 6.60 0 0.00 0 0 0 0 0 0
7582 5706569121297 P A 1 14.90 17 0.000 0 0 0 0.00 0 1757325018 1759324364 0 N N N B N R Y N N Y 10 1758232800 S 0 0 0 0 6 N 0 P F default a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;} activity 0 0 N 0 11.10 0 0.00 0 0 0 0 0 0