Corsair FRAME 4000X RS: CC-9011302-WW · black · standard RS120 fans
Lian Li LANCOOL III (black, LANCOOL 3-X): LANCOOL 3-X: black version with four 140 mm PWM fans. The white LANCOOL 3-W and the ARGB-fan 3R-X and 3R-W are colour and fan options of the same case; the LANCOOL 207 and 216 are separate cases.
| Specification | Corsair FRAME 4000X RS | Lian Li LANCOOL III (black, LANCOOL 3-X) |
|---|---|---|
| Release year | 2026 | 2022 |
| 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 | 3 × 140 mm PWM at the front, 1 × 140 mm PWM at the rear; 200–1800 rpm, 83.5 CFM, 33 dB(A) 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 | Power, reset, 2 × USB 3.0, 1 × USB Type-C, audio Lian Li |
| 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 | — | 526 × 238 × 523 mm (D × W × H) Lian Li |
| Motherboard and power supply | — | E-ATX (under 280 mm wide), ATX, Micro-ATX, Mini-ITX; ATX power supply up to 220 mm Lian Li |
| Materials | — | 0.8 mm SGCC steel; 4 mm tempered glass on both sides; aluminium door handles Lian Li |
| Fan support | — | Front 3 × 120/140 mm, top 3 × 120/140 mm, rear 1 × 120/140 mm, above the PSU shroud 3 × 120 mm Lian Li |
| Radiator support | — | Front 360/420 mm, top 360/420 mm, above the PSU shroud 360 mm Lian Li |
| Component clearances | — | Graphics card up to 435 mm; CPU cooler up to 187 mm Lian Li |
| Storage | — | 2 + 3 + 3 × 2.5-inch bays and a 4 × 3.5/2.5-inch drive cage Lian Li |
| Expansion slots | — | 8 Lian Li |
| Dust filter and warranty | — | 1 bottom dust filter; 1-year warranty Lian Li |