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RAM Compatibility for Panasonic Toughbook FZ-40 Mk1
The Panasonic Toughbook FZ-40 Mk1 is a rugged laptop with 11th-gen Intel processors. It uses DDR4-3200 memory (not DDR5 ) with 2 SO-DIMM slots, making RAM upgrades straightforward. The maximum supported RAM is 64GB (16-64GB across up to 2 DIMMs).
Memory Specifications
| Specification | Details |
|---|---|
| Memory Type | DDR4 |
| RAM Slots | 2 SO-DIMM |
| Max Capacity | 64GB (16-64GB across up to 2 DIMMs) |
| Speed | DDR4-3200 |
| Upgradeable | Yes |
| Form Factor | SODIMM |
Recommended RAM Upgrades
Panasonic specifies DDR4-3200 SO-DIMMs for the FZ-40 Mk1. The two DDR5 kits previously listed here will not fit:
Will not fit: Crucial DDR5-4800 SODIMM 16GB (2x8GB)
This is a DDR5 kit and will not fit: the FZ-40 Mk1 takes DDR4-3200 SO-DIMMs. Choose a DDR4-3200 SO-DIMM kit instead.
Will not fit: Kingston FURY Impact DDR5-4800 32GB (2x16GB)
This is a DDR5 kit and will not fit: the FZ-40 Mk1 takes DDR4-3200 SO-DIMMs.
Storage Compatibility
The Panasonic Toughbook FZ-40 Mk1 supports Panasonic quick-release OPAL NVMe SSD pack for storage. NVMe SSDs offer significantly faster read/write speeds compared to SATA drives, with sequential reads up to 7,000 MB/s on PCIe 4.0 models.
| Storage Type | Details |
|---|---|
| Storage Interface | Panasonic quick-release OPAL NVMe SSD pack |
| SSD Form Factor | Not stated by Panasonic (quick-release pack) |
Recommended SSDs
Best SSD: Samsung 980 Pro 1TB NVMe
Panasonic does not state the drive format inside its quick-release SSD pack, so confirm with Panasonic or your reseller that a retail M.2 drive fits your pack before buying.
Frequently Asked Questions
Can I upgrade the RAM in the Panasonic Toughbook FZ-40 Mk1?
Yes, the Panasonic Toughbook FZ-40 Mk1 has 2 accessible SO-DIMM slots supporting up to 64GB (16-64GB across up to 2 DIMMs) of DDR4-3200 memory.
What is the maximum RAM for the Panasonic Toughbook FZ-40 Mk1?
The maximum supported RAM is 64GB (16-64GB across up to 2 DIMMs) of DDR4-3200.
What type of SSD does the Panasonic Toughbook FZ-40 Mk1 use?
The Panasonic Toughbook FZ-40 Mk1 uses Panasonic quick-release OPAL NVMe SSD pack. Panasonic does not state the M.2 size inside the pack, so confirm fit with Panasonic before buying a retail drive.
Related Panasonic Upgrade Guides
- Panasonic Toughbook CF-33 Mk3
- Panasonic Toughbook CF-31 Mk6
- Panasonic Toughbook FZ-G2
- Panasonic Toughbook CF-54 Mk3
- Panasonic Upgrade Guide
Not sure what fits? Use our free Compatibility Checker covering 3,195+ models.
Helpful Guides
Upgrades that fit the Panasonic TOUGHBOOK 40 Mk1
What fits: Memory: DDR4-3200 SO-DIMM, 2 user slots, up to 64GB · Storage: proprietary/soldered — no retail SSD fits
Spec source: pna-b2b-storage-mkt.s3.amazonaws.com (checked 26 Sep 2026).
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DDR4 SO-DIMM memory that fits
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