Question 1

how many USB ports does this have?

Accepted Answer

There are actually three USB ports.
1. USB 2.0 port (right hand side of Laptop). I use this for my wireless mouse Unifying Receiver.
2. USB 3.2 Gen 1 (5 Gbit/sec). I use this to attach external storage hard drives.
3. USB 3.2 Gen 2 Type-C / Thunderbolt 3 combo port. I this with a Rosewill RNG-408U USB 3.1 Gen1 Type-C to Gigabit Ethernet Adapter 1 Gbps.

Question 2

Does this have the option of using a mouse?

Accepted Answer

Yes with a usb dongle or a usb wired mouse

Question 3

Can this be charged via the usb C port?

Accepted Answer

No. There is a separate charging port (4.0 mm x 1.35 mm) and a 19 volt AC Adapter.

Question 4

Is the Ram LPDDR3 or is it LPDDR4X? It says DDR3 in the overview and DDR4 in the title and title description

Accepted Answer

The RAM is Low Power DDR4 (LPDDR4). Below is from CPUID. I only attached the first (ChannelA-DIMM0).
The data below is repeated for ChannelB-DIMM0 (for 8GB total).

DMI Memory Device
designationChannelA-DIMM0
formatRow of chips
typeLPDDR4
total width32 bits
data width32 bits
size4 GB

Question 5

Can you install a (data) mechanical hard disk drive (HDD) or any way to expand the 256 GB PCIe SSD?

Accepted Answer

To answer my own question, I don't believe there is room to install a 2.5" hard drive or SSD. There is a SD card reader on the right hand side. This is for a full size (postage stamp size) SD card (or a micro SD card in an adapter). However, you can not push the SD card all the way in (flush with the frame). The SD card sticks out about the same length as a USB Type-A cable handle.

Question 6

Is it a brand new one or recently used one ? what is the battery life is it really upto 24 hours ?

Accepted Answer

The product is new. Battery capacity is exceptional. The specification is: 72WHrs, 4S1P, 4-cell Li-ion.
72WHrs means 72 Watt Hours. 4S1P means four cells in serial (4 * 3.7 Volts = 14.8 Volts).
Many other laptops only have two or three cells, and 40 to 50 Watt Hours.

The "up to 24 hours of battery life" implies average power consumption of three Watts (72 / 24 = 3).
I lightly using this Laptop about 12 Hours a day, and only need to charge it every other day (2 * 12 = 24).

The charger is 45 Watts (19 Volts, 2.37 Amps). This implies 96 minutes to fully charge the battery (72 / 45 = 1.6 hours).
Today I charged from 30% to 100% in about 75 minutes. The math above implies (0.7 * 96 = 67.2 minutes) which is close.

Question 7

is the ram expandable?

Accepted Answer

No, because it has onboard memory, which isn't expandable.

Brand	ASUS
Series	VivoBook
Model	S403JA-BH71
Part Number	90NB0RJ2-M01070
Color	Silver Blue (Aluminum)

CPU Type	Intel Core i7 10th Gen
Processor Name	Intel Core i7-1065G7
Core Name	Ice Lake
Turbo Frequency	Up to 3.90 GHz
Number of Cores	Quad-core Processor
CPU L3 Cache	8 MB

Screen Size	14.0"
Touchscreen	Non-Touch Screen
Wide Screen Support	Yes
Display Type	FHD
Resolution	1920 x 1080
Panel	IPS
Display Features	300 nits Anti-glare display sRGB: 100% 87% Screen-to-body ratio IPS-level Panel

GPU/VPU	Intel Iris Plus Graphics
Video Memory	Shared system memory
Graphic Type	Integrated Card

SSD	256GB PCIe
Storage Spec	256 GB M.2 NVMe PCIe 3.0 SSD Storage Support: 1 x M.2 2280 PCIe 3.0x4

ASUS VivoBook 14 S403 Thin and Light Laptop, 14" FHD Display, Intel Core i7-1065G7 Processor, 8 GB LPDDR4X RAM, 256 GB PCIe SSD, Thunderbolt 3, Windows 10 Home, Silver Blue, S403JA-BH71

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Memory	8 GB LPDDR4X
Memory Spec	8 GB onboard
Memory Slot (Available)	0

WLAN	Intel Wi-Fi 6 (Gig+) (802.11ax)
WiFi Generation	Wi-Fi 6
Bluetooth	Bluetooth 5.0 (Dual band) 2x2

USB	1 x USB 2.0 Type-A 1 x USB 3.2 Gen 1 Type-A
Thunderbolt	1 x Thunderbolt 3 supports display / power delivery
HDMI	1 x HDMI 1.4
Audio Ports	1 x 3.5mm Combo Audio Jack

Audio	Built-in array microphone SonicMaster Audio by ICEpower
Speaker	Built-in speaker

Keyboard	Backlit Chiclet Keyboard
Backlit Keyboard	Backlit
Webcam	720p HD camera
Card Reader	2-in-1 card reader SD/MMC

AC Adapter/Charger	45-watt AC Adapter
Battery	72WHrs, 4S1P, 4-cell Li-ion

General
Style	Thin and Light
Type	Mainstream
Usage	Consumer

Dimensions & Weight
Dimensions (W x D x H)	12.70" x 8.20" x 0.65"
Weight	2.98 lbs.

Item#: N82E16834235596