Dell Latitude 5420 upgrades
Two user-accessible DDR4 SO-DIMM slots (up to 64 GB) and a single M.2 SSD slot; there is no 2.5" bay, so internal storage can only be expanded by swapping the SSD. Access requires removing the 8 base-cover screws.
- SO-DIMM memory slot: 2 × DDR4 SO-DIMM · up to 64 GB total · 3200 MT/s
- M.2 SSD slot (2230/2280): SSD M.2 2230 / M.2 2280 (NVMe) · up to 1.024 TB
- microSD card slot: Flash card microSD (SD (UHS))
SO-DIMM memory slot 2 × DDR4 SO-DIMM · up to 64 GB total · 3200 MT/s
Dual-channel DDR4-3200; Dell lists 4, 8, 16 or 32 GB per slot. Use matched pairs for dual-channel. 10th-gen CPU units may run slower (officially DDR4-2666). Spec table doesn't mention ECC; non-ECC unbuffered is the safe choice.
| $/GB | Price | Capacity | Product | Condition | Store | Link |
|---|---|---|---|---|---|---|
| $3.48 | $27.82 | 8 GB | Crucial 8GB DDR4-2400 SO-DIMM DDR4-2400 CL17 SO-DIMM | Used | eBay US +2 | View deal |
| $4.37 | $34.95 | 8 GB | Crucial 8GB DDR4-2400 SO-DIMM DDR4-2400 CL17 SO-DIMM | New | eBay US +2 | View deal |
| $4.37 | $69.99 | 16 GB | Crucial 16GB DDR4-3200 SO-DIMM DDR4-3200 CL22 SO-DIMM | Used | eBay US +2 | View deal |
| $4.97 | $159.00 | 32 GB | Crucial 32GB DDR4-3200 SO-DIMM DDR4-3200 CL22 SO-DIMM | Used | eBay US +2 | View deal |
| $5.47 | $175.00 | 2 × 16 GB | Crucial 32GB Kit (2 × 16GB) DDR4-3200 SO-DIMM DDR4-3200 CL22 SO-DIMM | Used | eBay US +1 | View deal |
| $6.22 | $199.00 | 32 GB | Crucial 32GB DDR4-3200 SO-DIMM DDR4-3200 CL22 SO-DIMM | New | eBay US +2 | View deal |
| $7.00 | $112.06 | 16 GB | Crucial 16GB DDR4-3200 SO-DIMM DDR4-3200 CL22 SO-DIMM | New | eBay US +2 | View deal |
| $7.50 | $29.99 | 4 GB | Crucial 4GB DDR4-2666 SO-DIMM DDR4-2666 CL19 SO-DIMM | New | eBay US +2 | View deal |
| $8.12 | $259.99 | 2 × 16 GB | Crucial 32GB Kit (2 × 16GB) DDR4-3200 SO-DIMM DDR4-3200 CL22 SO-DIMM | New | eBay US +2 | View deal |
| $8.94 | $35.78 | 4 GB | Crucial 4GB DDR4-2666 SO-DIMM DDR4-2666 CL19 SO-DIMM | Used | eBay US +1 | View deal |
M.2 SSD slot (2230/2280) SSD M.2 2230 / M.2 2280 (NVMe) · up to 1.024 TB
PCIe Gen 3 x4 NVMe; no SATA M.2 option listed. Dell lists up to 512 GB for 2230 and for 2280 self-encrypting drives, and up to 1 TB for 2280. Swapping between 2230 and 2280 may need different mounting hardware. Larger drives may work but are not listed.
| $/TB | Price | Capacity | Product | Condition | Store | Link |
|---|---|---|---|---|---|---|
| $120.00 | $120.00 | 1 TB | Crucial P3 1TB M.2 2280 NVMe (Gen3) M.2 2280 SSD · NVMe Gen3 | Used | eBay US +1 | View deal |
| $127.99 | $127.99 | 1 TB | Kingston NV3 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 | Used | eBay US +2 | View deal |
| $129.99 | $129.99 | 1 TB | Crucial P3 1TB M.2 2280 NVMe (Gen3) M.2 2280 SSD · NVMe Gen3 | New | eBay US +2 | View deal |
| $148.00 | $148.00 | 1 TB | Samsung 970 EVO Plus 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen3 | Used | eBay US +2 | View deal |
| $150.00 | $150.00 | 1 TB | Samsung 990 PRO 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 | Used | eBay US +2 | View deal |
| $159.99 | $159.99 | 1 TB | Kingston NV3 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 | New | eBay US +2 | View deal |
| $209.99 | $209.99 | 1 TB | Samsung 990 PRO 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 | New | eBay US +2 | View deal |
| $239.40 | $239.40 | 1 TB | Samsung 970 EVO Plus 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen3 | New | eBay US +2 | View deal |
| $454.99 | $454.99 | 1 TB | WD_BLACK SN770M 1TB M.2 2230 NVMe M.2 2230 SSD · NVMe Gen4 | New | eBay US +2 | View deal |
| $585.27 | $585.27 | 1 TB | WD_BLACK SN770M 1TB M.2 2230 NVMe M.2 2230 SSD · NVMe Gen4 | Used | eBay US | View deal |
microSD card slot Flash card microSD (SD (UHS))
Supports microSD, microSDHC and microSDXC cards. Good for extra removable storage only.
| $/TB | Price | Capacity | Product | Condition | Store | Link |
|---|---|---|---|---|---|---|
| $136.62 | $69.95 | 512 GB | Samsung PRO Plus 512GB microSDXC UHS-I microSD Flash card · SD (UHS) | Used | eBay US +2 | View deal |
| $234.36 | $119.99 | 512 GB | Samsung PRO Plus 512GB microSDXC UHS-I microSD Flash card · SD (UHS) | New | eBay US +2 | View deal |
| $266.76 | $136.58 | 512 GB | SanDisk Extreme 512GB microSDXC UHS-I microSD Flash card · SD (UHS) | New | eBay US +2 | View deal |
| $268.57 | $268.57 | 1 TB | SanDisk Extreme 1TB microSDXC UHS-I microSD Flash card · SD (UHS) | New | eBay US +2 | View deal |