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SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (64689, 64688)

Query time 0.00054

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 (64689,64688)"
    }
  }
}

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
64688	BLE-C-EIO	P						0	A	1	290.00	1000	0.000	0	0	0	0.00	0	1560353614	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;}	1768939989	Price increased by 5% from $249 to $261 - DC 5/26/21 Price increased 10% from $261 to $288 - DC 5/19/22 Price increased from $288 to $290 - DC 11/3/22	Y		none	none	18,19	BLE-C-EIO	{"21941":6,"23553":4,"23857":3}	1056013	0	0	0	0	0	0	0	0	1	0.00	0
64689	BLE-S-EIO	P						0	A	1	315.00	1000	0.000	0	0	0	0.00	0	1560358385	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;}	1743180358	Price increased 5% from $260 to $273 - DC 5/27/21 Price increased 10% from $273 to $301 - DC 5/23/22 Price increased from $301 to $315 - DC 11/3/22	Y		none	none	18,19	BLE-S-EIO	{"21950":5,"21941":6,"23551":4,"22224":5}	1056013	0	0	0	0	0	0	0	0	1	0.00	0