SELECT 
  video_id, 
  product_id 
FROM 
  cscart_ab__video_gallery 
WHERE 
  product_id IN (
    20573, 20574, 20575, 20576, 20577, 20578, 
    20579, 20580, 20581, 20582, 20583, 
    20584, 20585, 20586, 20587, 20588
  ) 
  AND status = "A"

Query time 0.00020

JSON explain

{
  "query_block": {
    "select_id": 1,
    "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 (20573,20574,20575,20576,20577,20578,20579,20580,20581,20582,20583,20584,20585,20586,20587,20588)"
    }
  }
}