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SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (65838, 65964)

Query time 0.00043

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": 2,
      "filtered": 100,
      "attached_condition": "cscart_products.product_id in (65838,65964)"
    }
  }
}

Result

product_id	product_code	product_type	trustmark_origin	trustmark_certified	trustmark_leadtime	trustmark_location	trustmark_return	owner_id	status	company_id	list_price	amount	weight	length	width	height	shipping_freight	low_avail_limit	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	updated_timestamp	pricing_note	use_new_layout	category_image	tax_code	upc_code	product_detail_ids	nav_sku	sku_columns	nav_review_user_id	hide_price	vendor_fulfilled	hide_commercial_price	non_returnable	ble_basics	commercial_hidden	allow_configurator	enable_customize	enable_buy_american	base_cost	redline_p
65838	BLE-C-LEGT	P	E	C	M	A	A	0	A	1	499.00	1000	0.000	0	0	0	0.00	0	1721841619	0	N	N	N	D	N	R	N	N	N	Y	10	0	N		0	0	0	0	13	N	0	P	F	default	a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;}	1749577088		Y		none	none	3855	BLE-C	{"22679":1,"22682":2,"22681":3,"23494":1,"21943":5,"21941":6,"21970":3,"23858":5,"23859":5,"23860":5,"23553":6,"23132":10,"22644":11,"23861":4,"23862":4,"23863":4,"23857":5}	0	0	0	0	0	0	0	0	0	1	0.00	0
65964	BLE-C-STU-ISO	P						0	A	1	570.00	1000	0.000	0	0	0	0.00	0	1763562668	0	N	N	N	D	N	R	N	N	N	Y	10	0	N		0	0	0	0	13	N	0	P	F	default	a:5:{s:16:"min_items_in_box";i:0;s:16:"max_items_in_box";i:0;s:10:"box_length";i:0;s:9:"box_width";i:0;s:10:"box_height";i:0;}	1763578610		Y		none	none	3926,3927	BLE-C-STU	{"21954":4,"23900":5,"24016":6,"22631":7,"22643":8,"22644":9,"22645":10}	0	0	0	0	0	0	0	0	0	1	0.00	0