UPCOMING NEW LEGACY PRE-ORDER PREVIEW

Kepler R

2U Rackmount Fanless Micro-ATX Case for Intel® Core™ (Ultra) Processors with Redundant Fanless ATX Power Supply

2U rack-mountable fanless case for Micro-ATX motherboards with 120W redundant, hot-swappable fanless ATX PSU. Supports processors up to 35W TDP with Intel® LGA1851/LGA1700 sockets. Features 4 front 2.5" SATA SSD/HDD hot-swap drive bays and 4 rear low-profile PCIe slots. Engineered for critical industrial server, control or telecommunication systems.

Product Code: A-ATX12-M1B
Where to Buy

Kepler R

  • Compatible with Micro-ATX and Mini-ITX motherboards with processors up to 35W TDP (LGA1851/LGA1700)
  • Fanless cooling and power supply design
  • Four-bay 2.5" SATA SSD/HDD mobile rack with secure lock and tool-free installation
  • Features four low-profile PCIe expansion slots
  • Fits standard 19 inch server racks
  • 120W redundant, hot-swappable fanless AC-to-DC power supply with active load sharing

Case / Power

Fanless Case

Optimised for Micro-ATX and Mini-ITX Motherboards

Designed to support a diverse range of common Micro-ATX and Mini-ITX form factor boards with Intel® LGA1851/LGA1700 sockets. 

Supports Intel® Core™ (12th/13th/14th Gen) & Core™ Ultra (15th Gen) processors up to 35W TDP.

Superb Passive Cooling

High-performance aluminium thermal module and dual copper heatpipes transfer heat efficiently from the CPU to the external aluminium fins, increasing surface area for rapid dissipation into the surrounding air without any moving parts.

Front and Rear Panel Layout

Features USB 3.2 Gen 1 (5 Gbps) Type-A ports and low-profile PCIe slots for expanded connectivity.

2U Rack-mountable Case

2U profile height, rackmount case with convenient pull-out handlebars. Fits in standard 19" server racks. 

Perfect for critical enterprise server, embedded computing, industrial control, audiovisual, medical equipment, or NAS/RAID applications.

Hot-swappable Drive Bays

Supports up to four 2.5" SATA SSDs/HDDs (up to 9.5mm height) with designated, lockable, tray front flaps for easy, tool-less mounting with hot-swap capabilities.

Silent Reliability

Completely fanless design eliminates noise and reduces mechanical failure points, ensuring reliability under continuous operation.

Ideal for applications sensitive to sound and vibrations.

Low-profile Expansion Slots

Supports up to four low-profile PCIe cards.

Power Supply Unit (PSU)

120W Redundant Hot-Swap Fanless PSU

Delivers 120W of power through two hot-swappable 1U modules with active load sharing for balanced distribution and uninterrupted operation.

With a completely fanless, convection-cooled design, it provides continuous, silent operation without any moving parts.

PMBus 1.1 Monitoring

Supports PMBus 1.1 for real-time monitoring of voltage, current, temperature and module status, enabling predictive maintenance and integration with remote system management.

Industrial-Grade Reliability

100,000-hour mean time between failures (MTBF) rating supports continuous, long-term operation in critical industrial environments.

Power Efficiency

80 PLUS Silver certified, achieving up to 89% efficiency at typical load to reduce energy waste and heat output.



Wide Operating Temperature

Performs reliably from -5°C to 50°C.

Full-Range AC and DC Input

Operates from 90 to 264 VAC and 190 to 310 VDC, compatible with mains power systems worldwide and high-voltage DC bus deployments.



Multi-Voltage Output

Provides standard ATX voltage outputs (+3.3V, +5V, +5V standby, +12V, -12V) for broad system compatibility.

Built-in Protections

Features Over Voltage (OVP), Over Current (OCP), Over Temperature (OTP) and Short Circuit (SCP) protections to protect both the PSU and connected components.



Certified Safety Compliance

Carries international and regional safety and EMC certifications: UL / cUL, TUV, CB, CE, CCC, FCC

Connectors

Equipped with ATX 24-pin main connector, dual 4-pin CPU, 4-pin Molex and SATA power connectors.

Available with a mains plug power cord, with EU, UK and US options currently offered. Other plug types may be available upon request.

Material Black sandblasted steel (SGCC) with aluminium heatsink
Motherboard Type Micro-ATX, Mini-ITX
Socket Support Intel® LGA1851, LGA1700
Maximum TDP Support 35W
Dimensions 481.8 x 307.5 x 87 mm (W x D x H)
Drive Bays 4 x 2.5" SATA SSD/HDD bays with door lock
(maximum drive height of 9.5 mm)
Front I/O 2.5" SATA SSD/HDD bays x4, USB 3.2 Gen 1 Type-A ports x2, power LED opening, HDD LED opening, power button
Rear I/O Low-profile PCIe slot x4, motherboard rear I/O opening, dual AC input inlet
Power Supply Unit (PSU) Redundant AC-to-DC power supply with multi-rail output
(redundant power output rated at 120W AC/DC (90-264 VAC))
Product Code A-ATX12-M1B

Output Power Redundant power output rated at 120W AC/DC (90-264 VAC)
Output Voltage +3.3V, +5V, +5V standby, +12V, -12V
Input Voltage 90-264 VAC, 190-310 VDC
Dimensions 200 x 122 x 41.5 mm (D x W x H)
Operating Temperature -5°C to 50°C
Power Cable Connector(s) 1x 24-pin ATX, 2x 4-pin CPU, 2x 4-pin Molex, 4x SATA
Power Efficiency 89%
Power Factor 0.95 at 115VAC / 60Hz, 0.90 at 230V / 50Hz
Protection Over Current Protection
Over Voltage Protection
Short Circuit Protection
Over Temperature Protection
Safety Standards and Directives UL/cUL, TUV, CB, CE, CCC, FCC

Installation manual

GB, FR, DE, PT, ES, RU, CZ, PL, JP, CN-S, CN-T

- 2026-05-18
UPCOMING NEW LEGACY PRE-ORDER Kepler
2U Rackmount Fanless Micro-ATX Case for Intel® Core™ (Ultra) Processors with Fanless ATX Power Supply
A-ATX11-M1B