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FormD T1 vs Phanteks P400A: Comparison
FormD T1 and Phanteks P400A separate most on cpu cooler clearance: FormD T1 at 71, Phanteks P400A at 160, 56% in favour of Phanteks P400A. GPU Clearance splits them by another 26%, again favouring Phanteks P400A.
Specs
| Specification | ![]() | ![]() |
|---|---|---|
| Motherboard Support | Mini-ITX | E-ATX, ATX, Micro-ATX, Mini-ITX |
| Case Type | SFF / Mini-ITX | Mid-Tower |
| Panel Type | CNC-milled solid aluminum panels | Mesh front panel, tempered glass side |
| GPU Clearance | 312-26% | 420 |
| CPU Cooler Clearance | 71-56% | 160 |
| Included Fans | 0 | 3 |
| Radiator Support | Side up to 240mm (panel swap required) | Front 360mm, Top 240mm |
| Front USB-C | true | false |
Price comparison
| Retailer | FormD T1 | Phanteks P400A |
|---|---|---|
| FormD | View on FormD | |
| SFF Network | View on SFF Network | |
| Phanteks | View on Phanteks |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
FormD T1
8 / 10 Expert Rating
A cult favorite for a reason, just go in knowing you're buying a shell, not a complete kit.
Phanteks P400A
7 / 10 Expert Rating
A dated but still capable budget mesh case; worth buying only if it's discounted below current-generation alternatives like the XT Pro.




