SELECT 
  video_id, 
  product_id 
FROM 
  cscart_ab__video_gallery 
WHERE 
  product_id IN (
    2380, 2372, 2371, 2370, 2377, 2373, 2375, 
    2386, 2381, 2374, 2379, 2378
  )

Query time 0.00025

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_ab__video_gallery",
      "access_type": "range",
      "possible_keys": ["product_id"],
      "key": "product_id",
      "key_length": "3",
      "used_key_parts": ["product_id"],
      "rows": 12,
      "filtered": 100,
      "attached_condition": "cscart_ab__video_gallery.product_id in (2380,2372,2371,2370,2377,2373,2375,2386,2381,2374,2379,2378)",
      "using_index": true
    }
  }
}