SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (96, 97, 100, 98, 101, 99)

Query time 0.00028

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": 6,
      "filtered": 100,
      "index_condition": "cscart_products.product_id in (96,97,100,98,101,99)"
    }
  }
}

Result

product_id product_code product_type status company_id list_price amount weight length width height shipping_freight low_avail_limit timestamp updated_timestamp usergroup_ids is_edp edp_shipping unlimited_download tracking free_shipping zero_price_action is_pbp is_op is_oper is_returnable return_period avail_since out_of_stock_actions localization min_qty max_qty qty_step list_qty_count tax_ids age_verification age_limit options_type exceptions_type details_layout shipping_params facebook_obj_type parent_product_id buy_now_url units_in_product show_price_per_x_units
96 BT041 P A 1 0.00 0 5.100 0 0 0 0.00 0 1398063600 1739223644 0 N N N D N P N N N Y 10 0 N 0 0 0 0 N 0 default a:5:{s:16:"min_items_in_box";i:1;s:16:"max_items_in_box";i:1;s:10:"box_length";i:17;s:9:"box_width";i:17;s:10:"box_height";i:17;} 0 0.000 1.000
97 BT041Skid(30) P A 1 0.00 0 99994.100 0 0 0 0.00 0 1403852400 1712782830 0 N N N D N R N N N Y 10 0 N 30 0 30 0 N 0 a:5:{s:16:"min_items_in_box";i:1;s:16:"max_items_in_box";i:1;s:10:"box_length";i:16;s:9:"box_width";i:16;s:10:"box_height";i:17;} 0 0.000 1.000
98 BT049Skid(16) P A 1 0.00 0 99995.400 0 0 0 0.00 0 1403852400 1712782830 0 N N N D N R N N N Y 10 0 N 16 0 16 0 N 0 a:5:{s:16:"min_items_in_box";i:1;s:16:"max_items_in_box";i:1;s:10:"box_length";i:19;s:9:"box_width";i:19;s:10:"box_height";i:19;} 0 0.000 1.000
99 BT020Skid(16) P A 1 0.00 0 99996.000 0 0 0 0.00 0 1403852400 1712782830 0 N N N D N R N N N Y 10 0 N 16 0 16 0 N 0 a:5:{s:16:"min_items_in_box";i:1;s:16:"max_items_in_box";i:1;s:10:"box_length";i:24;s:9:"box_width";i:21;s:10:"box_height";i:18;} 0 0.000 1.000
100 BT049 P A 1 0.00 0 5.400 0 0 0 0.00 0 1403852400 1712783263 0 N N N D N R N N N Y 10 0 N 0 0 0 0 N 0 a:5:{s:16:"min_items_in_box";i:1;s:16:"max_items_in_box";i:1;s:10:"box_length";i:19;s:9:"box_width";i:19;s:10:"box_height";i:19;} 0 0.000 1.000
101 BT020 P A 1 0.00 0 6.000 0 0 0 0.00 0 1403852400 1712783281 0 N N N D N R N N N Y 10 0 N 0 0 0 0 N 0 a:5:{s:16:"min_items_in_box";i:1;s:16:"max_items_in_box";i:1;s:10:"box_length";i:22;s:9:"box_width";i:21;s:10:"box_height";i:18;} 0 0.000 1.000