IW-RL400

4U Liquid-Cooled Rackmount Chassis

  • Liquid-cooled 4U rackmount server
  • Pre-installed 360 mm AIO liquid cooler with three 120 mm fans
  • AIO options are available with an Intel® LGA4710 bracket, or with LGA1851 and AMD AM5 mounting package
  • Supports up to five 3.5" or four 2.5" scalable storage drives
  • Optional rear fans: Two 80 x 25 mm and one additional 80 x 38 mm fan kit for enhanced GPU cooling
  • Supports up to 8 FHFL PCIe slots for multi-task AI machine training
  • Compatible with ATX up to 2500W and CRPS 80 PLUS® Platinum power supplies

4U Rackmount Server

IW-RL400 with Pre-installed AIO Liquid Cooling

The IW-RL400 is a 4U rackmount chassis designed for AI applications, including LLM and generative AI workloads. Pre-installed with an industrial-grade 360 mm AIO liquid cooler, it ensures optimal cooling for high system loads, delivering smooth performance. With support for eight full-height, full-length PCIe slots and flexible configuration options, it is ideal for AI GPU edge servers.

AI/Edge computing

AIO liquid cooler

80x25mm fans x2
80x38mm fans x2

Internal drives

Internal drives

FHFL PCIe slots support

CRPS & ATX PSU

20" deep chassis

Elite Cooling

The IW-RL400 is equipped with a 360 mm AIO liquid cooler, engineered to support Intel® LGA4710/1851 and AMD AM5 sockets and meet the demands of enterprise cooling. Paired with three industrial-grade, double ball bearing fans capable of reaching up to 2700 RPM and delivering an impressive airflow of 93.99 CFM, it ensures superior cooling for server CPUs and delivers reliable performance in enterprise environments.

Enterprise Solutions

Edge computing thermal demands are critical! The IW-RL400 supports LGA4710/1851 and AMD AM5 processors, covering all cores optimally and cooling them with precision. The IW-RL400 delivers enhanced operational stability and performance for your computing systems.
CPU Socket Support Intel® LGA 4710/ 4677 (bracket pre-installed)
CPU TDP 350W
Radiator Dimensions
(L x W x H)
396 x 120 x 27 mm
Tube Length 450 mm
Pump Speed 4500 RPM +/- 10%
Pump Power 21.6W (24W MAX)
Fans 120 x 25 mm fans x 3pcs, 2700 RPM, 4-Pin 12V connectors
Fan Airflow 93.99 CFM
Fan Air Pressure 6.32 mm / H2O
CPU Socket Support Intel® LGA 1851/ 1700/ 1200/ 20xx/ 1151/ 115x
AMD AM5/ AM4/ AMx/ FMx
Radiator Dimensions
(L x W x H)
397 x 120 x 27 mm
15.6 x 4.7 x 1.06"
Tube Length 450 mm
Pump Speed 3100 RPM +/- 10%
Pump Power 3.0W (3.3W MAX)
Fans 120 x 25 mm fans x 3pcs, 2700 RPM, 4-Pin 12V connectors
Fan Airflow 93.99 CFM
Fan Air Pressure 6.32 mm / H2O

Water Cooling is a Key

As new AI generation servers provide powerful processing capabilities, CPU configurations face thermal dissipation challenges. InWin’s RL series liquid-cooled servers significantly reduce energy consumption, ensuring lower CPU chip temperatures.
The IW-RL400 water cooling kit offers a TDP of up to 350W (Intel® LGA 4710), enhancing system stability and enabling the handling of the most demanding workloads in edge computing.

Airflow & Expansion

Besides the 360 mm AIO set, the IW-RL400 can accommodate up to 4 additional rear fans, effectively channeling heat away from the graphics card to ensure optimal cooling performance, even under the full workload of machine learning applications. Additionally, the IW-RL400 supports 8 full-height, full-length PCIe slots, allowing for a wide range of AI system configurations.

Storage Management

The IW-RL400 offers flexible storage options. Users can configure a combination of a two-layer 2.5" SSD bracket and a five-layer 3.5" HDD tray, with the option to swap the first layer for a 2.5" SSD. Alternatively, it can focus entirely on SSD options by using two 2-layer brackets, supporting up to four 2.5" SSDs.

Power Flex

The IW-RL400 offers flexible compatibility with both CRPS and standard ATX PSUs, supporting safety-certified 80 PLUS® Platinum power supplies to provide versatile power solutions for multiple GPU configurations.

Power Cable Information

Unit of Length: mm
Single PSU Cable Information
24-Pin Main Power Connector

8 (6+2) Pin PCIE

4+4-Pin CPU

Peripheral Power Connector

PCI-E 12V-2X6

SATA
2000W CRPS Cable Information
24-Pin Main motherboard

PCIe 6+2 pin X2 GPU

8-Pin CPU

PCIe 6+2 pin X2 GPU

8-Pin CPU

molex 4pin X2 expansion

4+4-Pin CPU

molex 4pin X2 expansion

PCIe 6+2 pin X2 GPU

SATA 15pin X3 internal HDD

PCIe 6+2 pin X2 GPU

PMBus
Specification
Industry Standard Compatible with EIA-RS310D standard 19" cabinets
M/B Form Factor ATX (12" x 9.6"), CEB (12" x 10.5"), EEB (12" x 13")
Drive Bay Max supports:
• 5 x 3.5" / 4 x 3.5" + 1 x 2.5"
• 4 x 2.5" (optional)
Power Supply Supports:
• 2000W 1+1 CRPS, 80 Plus Platinum
• 2500W Standard ATX PSU
Indicators Power LED, LAN1/LAN2 LED, system LED, HDD LED
Front Control Panel Power on/off, system reset, USB3.0 x 2
Cooling Fans Supports:
• 80 x 25 mm PWM rear fans x 2 (optional), 4500 RPM
• 80 x 38 mm PWM rear fans kit for GPU thermal (optional), 5500 RPM
Water Cooling Radiator Package 1:
• 120 x 25 mm PWM fans x 3, 2700 RPM, 4pin
• Front IW-LSA36 360 mm AIO liquid cooler x 1 (Intel® LGA4710/4677)

Package 2:
• 120 x 25 mm PWM fans x 3, 2700 RPM, 4pin
Front IW-LSC36 360 mm AIO liquid cooler x 1 (• Intel® LGA 1851/1700 •AMD AM5)
Expansion Slot • Full-height PCIe slots x 8
Material • Material: SGCC
• Thickness: 1.2 mm
Rail Kit 28" tool-less & ball-bearing slide rails
Product Dimensions (DxWxH; Chassis Only) 525 x 430 x 174.8 mm
(20.67" x 16.92" x 6.88")
Package Dimensions (DxWxH) 760 x 610 x 325 mm
(29.92" x 24.02" x 12.80")
Weight • Net weight: 11.75 kg
• Gross weight: 14.55 kg
Cubic Feet 5.32
Container Information Single packing with pallets:
• 20': 110 pcs
• 40': 240 pcs
• 40'HQ: 288 pcs

Water Cooling Kit - Package 1

CPU Socket Support Intel® LGA 4710/ 4677 (bracket pre-installed)
CPU TDP 350 W
Radiator Dimensions (L x W x H) 396 x 120 x 27 mm
15.6 x 4.7 x 1.06"
Tube Length 450 mm
Pump Speed 4500 RPM +/- 10%
Pump Power 21.6W (24W MAX)
Fans 120 x 25 mm fans x 3pcs, 2700 RPM, 4-Pin 12V connectors
Fan Airflow 93.99 CFM
Fan Air Pressure 6.32 mm / H2O

Water Cooling Kit - Package 2

CPU Socket Support • Intel® LGA 1851/ 1700/ 1200/ 20xx/ 1151/ 115x
• AMD AM5/ AM4/ AMx/ FMx
Radiator Dimensions (L x W x H) 397 x 120 x 27 mm
15.6 x 4.7 x 1.06"
Tube Length 450 mm
Pump Speed 3100 RPM +/- 10%
Pump Power 3.0W (3.3W MAX)
Fans 120 x 25 mm fans x 3pcs, 2700 RPM, 4-Pin 12V connectors
Fan Airflow 93.99 CFM
Fan Air Pressure 6.32 mm / H2O
* The actual product is subject to change without prior notice. In Win Development Inc. reserves the right to make any final modifications.
* The above image is for reference only. All hardware components and optional parts are not included.

Item Download Preview
IW-RL400 eDM
IW-RL400 Gallery -
IW-RL400 Compatibility List
IW-RL400 User Manual
Item Part Number Description Support Picture
Slide Rail 3RAMIS129500 28" tool-less & ball-bearing slide rails (weight capacity 35kg) 1
Slide Rail 3RAMIS144400 23" tool-less & ball-bearing slide rails (weight capacity 45kg) 1
Power Supply 3RAMAP048200 IW-P250II Standard ATX power supply (80 Plus Platinum 2500W x1) 1
Power Supply 3RAMAP038600/ 3RAMAP045400 80 Plus Platinum CRPS 2000W (AC input 100-127V, total power 1000W max. / AC input 200-240V, total power 2000W max.)/ CRPS PDB Max.2
HDD cage 2RARID047501 2.5” HDD cage 1
Fan 3RAMFS025600 IW-DN Max, 120 x 25mm PWM fan, 2700RPM, 4pin Max.3
Fan 3RAMFB008602 80 x 25mm PWM fan, 4500 RPM, 4pin Max.2
Fan 2RAKID059800 Rear fan kit for GPU thermal, 80 x 38mm, 5500RPM, 4pin 1 set
Water Cooling Radiator 2RAPIS144201 240/360mm middle radiator bracket kit 1
Water Cooling Radiator 2RAKBA007600/3RAMFS025600 IW-LSA36, 360mm AIO liquid cooler (Intel® LGA 4710/ 4677) / IW-DN Max, 120 x 25mm PWM fan 1 set
Water Cooling Radiator 2RAKBA010500/3RAMFS025600 IW-LSC36, 360mm AIO liquid cooler (• Intel® LGA 1851/ 1700/ 1200/ 20xx/ 1151/ 115x • AMD AM5/ AM4/ AMx/ FMx) /IW-DN Max, 120 x 25mm PWM fan 1 set
Other 3RAMRW011300 Intrusion switch / 800mm 1

Product Video

InWin RL Series | Liquid-Cooled Server Chassis

InWin RL Series | Liquid-Cooled Server Chassis

InWin RL Series Product Application

InWin RL Series Product Application


Tutorials

InWin IW-RL400 MB & LGA4710 AIO & GPU Installation

InWin IW-RL400 MB & LGA4710 AIO & GPU Installation

InWin IW-RL400 LGA1851 / AM5 AIO Installation

InWin IW-RL400 LGA1851 / AM5 AIO Installation

InWin IW-RL400 Storage & Fans Installation

InWin IW-RL400 Storage & Fans Installation

InWin IW-RL400 ATX & CRPS Installation

InWin IW-RL400 ATX & CRPS Installation