Microsoft Surface Book 3
No. The memory is soldered to the board.
8 or 16 or 32 GB is built in and there is no slot to add more.
- Free slots
- None
- Type
- LPDDR4-3733
- Soldered
- 8 GB or 16 GB or 32 GB, depending on the configuration
- Firmware says
- 32 GB maximum
- How sure
- 11 of 11 reports show this layout
Worked out from 11 hardware reports of this tablet. Sources and method. Updated 10 Nov 2026.
Yes. It takes an NVMe M.2 SSD.
The slot runs at PCIe 3.0 x4, up to about 3.9 GB/s. A faster PCIe 4.0 drive works too, at that speed. M.2 drives come in 2230, 2242 and 2280 lengths (30, 42 and 80 mm). Check the length printed on your current drive before you order.
- Drive type
- NVMe (PCIe)
- Slot speed
- PCIe 3.0 x4, from 10 machines
- Length
- Check your current drive
- How sure
- NVMe drive in 18 of 18 machines
From 18 PCI device reports. Sources and method. Updated 10 Nov 2026.
Illustration Match the label on your battery.
We don't have this model's battery capacity yet. The capacity (Wh) and the part number are printed on the battery itself. A replacement should match that part number.
- Capacity
- On the battery's label
How to read a battery label. Sources and method. Updated 10 Nov 2026.
Illustration Match the label on your charger.
We don't have this model's charger rating yet. The label on your charger shows it: the output line gives volts and amps, and volts times amps is the watts (19.5 V at 3.33 A is 65 W). Buy one with the same plug, the same voltage and at least as many watts.
- Rated output
- On your charger's label
How to read a charger label. Sources and method. Updated 10 Nov 2026.
Illustration Questions
Can I upgrade the RAM in the Microsoft Surface Book 3?
No. The memory is soldered to the board. 8 or 16 or 32 GB is built in and there is no slot to add more.
What type of RAM does the Microsoft Surface Book 3 use?
LPDDR4-3733 memory soldered to the board.
What SSD does the Microsoft Surface Book 3 take?
Yes. It takes an NVMe M.2 SSD. The slot runs at PCIe 3.0 x4, up to about 3.9 GB/s. A faster PCIe 4.0 drive works too, at that speed. M.2 drives come in 2230, 2242 and 2280 lengths (30, 42 and 80 mm). Check the length printed on your current drive before you order.
Is this my tablet?
Check the model name on the label underneath. It should read Surface Book 3.