Corsair FRAME 4000X RS: CC-9011302-WW · black · standard RS120 fans
Lian Li LANCOOL 217 INF: LAN217INFX · black
| Specification | Corsair FRAME 4000X RS | Lian Li LANCOOL 217 INF |
|---|---|---|
| Release year | 2026 | 2025 |
| Announcement and availability | 7 April 2026; immediately available at announcement Corsair | — |
| Case type | Mid-tower; steel, tempered glass, plastic Corsair | — |
| Motherboard support | Mini-ITX, Micro-ATX, ATX; E-ATX up to 305 × 277 mm Corsair | — |
| Back-connect motherboard support | Supported Corsair | — |
| Graphics card clearance | 405 mm with 25 mm front fans; nominal 430 mm without front fans Corsair | — |
| CPU cooler height | Up to 170 mm Corsair | — |
| Power supply | ATX; up to 220 mm long Corsair | — |
| Included fans | 4 × RS120 PWM; unlit Corsair | Front: 2 × 170 mm; rear: 1 × 140 mm Lian Li |
| Front panel | RGB Flow; 64 LEDs; 5 V ARGB Corsair | — |
| Front I/O | 20 Gbit/s USB-C; 2 × 5 Gbit/s USB-A; combined headphone/microphone Corsair | — |
| Controls | Power button; no reset switch or drive activity LED Corsair | — |
| Front/top fan rails | Front fans up to 200 mm; top fans up to 140 mm Corsair | — |
| Radiator mounts | Front/top/side: 240, 280 or 360 mm; rear: 120 or 140 mm Corsair | — |
| SATA drive bracket | 2 × 2.5-inch SSDs or 1 × 3.5-inch HDD Corsair | — |
| Cable clearance | 37 mm behind the motherboard Corsair | — |
| Dust filters | Front, side and bottom Corsair | — |
| Vertical GPU mounting | Rotatable PCIe bracket; riser cable separate Corsair | — |
| iCUE LINK lighting | Separate RGB adapter, compatible LINK hub and iCUE 5 required Corsair | — |
| Dimensions | — | 482 × 238 × 503 mm Lian Li |
| Materials | — | Steel · 4 mm tempered glass Lian Li |
| Motherboards | — | SSI-EEB ≤330 mm; E-ATX ≤280 mm; ATX/mATX/ITX Lian Li |
| Rear connectors | — | ATX and mATX support Lian Li |
| Graphics card | — | Up to 380 mm Lian Li |
| CPU cooler | — | Up to 180 mm Lian Li |
| Top fan positions | — | 3 × 120 mm or 2 × 140 mm Lian Li |
| 360 mm radiator | — | Top; total thickness ≤85 mm, length ≤406.5 mm Lian Li |
| 280 mm radiator | — | Top; total thickness ≤60 mm Lian Li |
| Lower fan options | — | 3 × 120 mm above or 2 × 120 mm below PSU shroud Lian Li |
| PSU length | — | Standard ≤220 mm; rotated ≤180 mm Lian Li |
| Front connections | — | 2 × USB-A 3.0; USB-C 3.2; combined audio Lian Li |
| Expansion | — | 7 slots; rotatable PCIe bracket Lian Li |
| Lighting control | — | M1/M2 buttons; separate L-Wireless controller for L-Connect 3 Lian Li |