SELECT 
  cscart_products.*, 
  cscart_products.ebay_status, 
  cscart_products.ebay_template_id 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    10127, 10128, 10129, 10145, 10160, 10166, 
    10167, 10170, 10171, 10172, 10173, 
    10174, 10175, 10176, 10177, 10178
  )

Query time 0.00034

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_products",
      "access_type": "range",
      "possible_keys": ["PRIMARY"],
      "key": "PRIMARY",
      "key_length": "3",
      "used_key_parts": ["product_id"],
      "rows": 16,
      "filtered": 100,
      "index_condition": "cscart_products.product_id in (10127,10128,10129,10145,10160,10166,10167,10170,10171,10172,10173,10174,10175,10176,10177,10178)"
    }
  }
}