SELECT 
  video_id, 
  product_id 
FROM 
  cscart_ab__video_gallery 
WHERE 
  product_id IN (
    2698, 2706, 2708, 2701, 2696, 2702, 2709, 
    2700, 2707, 2699, 2705, 2703
  )

Query time 0.00031

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 (2698,2706,2708,2701,2696,2702,2709,2700,2707,2699,2705,2703)",
      "using_index": true
    }
  }
}