SELECT 
  video_id, 
  product_id 
FROM 
  q_ab__video_gallery 
WHERE 
  product_id IN (
    51125, 51103, 51099, 51094, 51078, 40981, 
    40982, 40983, 40984, 40985, 40986, 
    40987, 40988, 40989, 40990, 40991, 
    40992, 40993, 40994, 40995, 40996, 
    40997, 40998, 40999, 41000, 41001, 
    41002, 41003, 41004, 41005
  )

Query time 0.00036

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "5.80"
    },
    "table": {
      "table_name": "q_ab__video_gallery",
      "access_type": "index",
      "possible_keys": [
        "product_id"
      ],
      "key": "product_id",
      "used_key_parts": [
        "product_id"
      ],
      "key_length": "3",
      "rows_examined_per_scan": 24,
      "rows_produced_per_join": 24,
      "filtered": "100.00",
      "using_index": true,
      "cost_info": {
        "read_cost": "1.00",
        "eval_cost": "4.80",
        "prefix_cost": "5.80",
        "data_read_per_join": "1K"
      },
      "used_columns": [
        "video_id",
        "product_id"
      ],
      "attached_condition": "(`portal`.`q_ab__video_gallery`.`product_id` in (51125,51103,51099,51094,51078,40981,40982,40983,40984,40985,40986,40987,40988,40989,40990,40991,40992,40993,40994,40995,40996,40997,40998,40999,41000,41001,41002,41003,41004,41005))"
    }
  }
}