SELECT 
  video_id, 
  product_id 
FROM 
  cscart_ab__video_gallery 
WHERE 
  product_id IN (
    321, 320, 319, 318, 317, 316, 315, 314, 
    313, 312, 311, 310, 309, 308, 307, 306, 
    305, 304, 303, 302
  ) 
  AND status = 'A' 
  AND storefront_id IN (1, 0)

Query time 0.00042

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_ab__video_gallery",
          "access_type": "ref",
          "possible_keys": ["status", "product_id"],
          "key": "status",
          "key_length": "3",
          "used_key_parts": ["status"],
          "ref": ["const"],
          "rows": 1,
          "filtered": 100,
          "index_condition": "cscart_ab__video_gallery.`status` = 'A'",
          "attached_condition": "cscart_ab__video_gallery.product_id in (321,320,319,318,317,316,315,314,313,312,311,310,309,308,307,306,305,304,303,302) and cscart_ab__video_gallery.storefront_id in (1,0)"
        }
      }
    ]
  }
}