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 Intel® socket-based processors up to 35W TDP. 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.
Designed to support a diverse range of common Micro-ATX and Mini-ITX form factor boards with Intel® LGA1851/LGA1700/LGA1200/LGA115X sockets.
Supports Intel® Core™ (8th-14th Gen) & Core™ Ultra (15th Gen) processors up to 35W TDP.
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.
Features USB 3.2 Gen 1 (5 Gbps) Type-A ports and low-profile PCIe slots for expanded connectivity.
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.
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.
Completely fanless design eliminates noise and reduces mechanical failure points, ensuring reliability under continuous operation.
Ideal for applications sensitive to sound and vibrations.
Supports up to four low-profile PCIe cards.
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.
Supports PMBus 1.1 for real-time monitoring of voltage, current, temperature and module status, enabling predictive maintenance and integration with remote system management.
100,000-hour mean time between failures (MTBF) rating supports continuous, long-term operation in critical industrial environments.
80 PLUS Silver certified, achieving up to 89% efficiency at typical load to reduce energy waste and heat output.
Performs reliably from -5°C to 50°C.
Operates from 90 to 264 VAC and 190 to 310 VDC, compatible with mains power systems worldwide and high-voltage DC bus deployments.
Provides standard ATX voltage outputs (+3.3V, +5V, +5V standby, +12V, -12V) for broad system compatibility.
Features Over Voltage (OVP), Over Current (OCP), Over Temperature (OTP) and Short Circuit (SCP) protections to protect both the PSU and connected components.
Carries international and regional safety and EMC certifications: UL / cUL, TUV, CB, CE, CCC, FCC
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, LGA1200, LGA115X |
| 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 |
September 2026
| Brand | Model | Compatible Processor(s) | Socket |
|---|---|---|---|
| Aaeon | MAX-Q870A | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| Aaeon | MAX-H810A | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| Aaeon | MAX-Q670A | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Advantech | AIMB-589 | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| Advantech | AIMB-588 B1 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Advantech | AIMB-508 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Advantech | AIMB-587 | Intel® Core™ Processors (10th, 11th Gen) | LGA1200 |
| Advantech | AIMB-586 | Intel® Core™ Processors (8th, 9th Gen) | LGA1151 |
| Advantech | AIMB-506 | Intel® Core™ Processors (8th, 9th Gen) | LGA1151 |
| Asrock | H810M-HDVP | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| Asrock | B860M-HDVP | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| Asrock | B860M-H2 | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| Asrock | B860M Pro-A/TPM | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| Asrock | Q670M vPro | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock | H610M-X D5 Gen5 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock | H610M-X D5 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock | H610M-HVS/M.2 R2.0 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock | H610M-HVS/M.2 D5 Gen5 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock | H610M-HVS | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock | H610M-HDV/M.2+ D5 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock | H610M-HDV/M.2 R2.0 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock | H610M-HDV/M.2 D5 Gen5 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock | H610M-HDV | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock | H610M-H2/M.2 D5 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock | H610M-H2/M.2 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock | H610M COMBO II | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock | B760M-HDVP | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock | B760M-HDV/M.2 D4 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock | B660M-HDV | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock Industrial | IMB-X1316-10G | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock Industrial | IMB-X1316 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock Industrial | IMB-X1314 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock Industrial | IMB-1318 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock Industrial | IMB-1316 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock Industrial | IMB-1315 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Asrock Industrial | IMB-1314 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | Pro Q870M-C-CSM | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS | Pro Q870M-C V2-CSM | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS | Pro H810M-CT-CSM | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS | Pro H810M-C-CSM | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS | Prime H810M-X 2.5G-CSM | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS | Prime H810M-X 2.5G | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS | Prime H810M-K-CSM | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS | Prime H810M-K | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS | Prime H810M-E-CSM | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS | Prime H810M-E | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS | PRIME H810M-A WIFI | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS | B860M-E-CSM | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS | B860M-E | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS | B860M-BRO-CSM | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS | B860M-BRO | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS | Pro Q670M-CE-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | Pro Q670M-C-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | Pro H610M-CT2 D4-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | Pro B760M-CT-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | Pro B760M-C-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | Pro B660M-C-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | Pro B660M-C D4-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME H610M-R-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME H610M-R D4-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME H610M-R | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME H610M-K-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME H610M-K D4-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME H610M-K D4 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME H610M-K | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | Prime H610M-F-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME H610M-F D4 R2.0-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME H610M-F D4 R2.0 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | Prime H610M-F | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME H610M-E D4 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME H610M-D D4-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME H610M-D D4 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME H610M-D | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME B760M-F-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME B760M-F WIFI-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME B760M-F WIFI | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME B760M-F D4-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME B760M-F D4 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME B760M-F | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME B760M-A AX6 II | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PRIME B760M-A AX6 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS | PR|IME H610M-F WIFI-CSM | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS IoT | Q870M-IM-A | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| ASUS IoT | R680EM-IM-A | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS IoT | Q670M-EM-A | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS IoT | Q670EM-IM-A | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS IoT | H610M-IM-A D5 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS IoT | H610M-IM-A | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| ASUS IoT | Q370M-IM-A | Intel® Core™ Processors (8th, 9th Gen) | LGA1151 |
| ASUS IoT | H310M-IM-A | Intel® Core™ Processors (8th, 9th Gen) | LGA1151 |
| DFI | ADS310-R680E | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| DFI | ADS310-Q670E | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Gigabyte | H610M K DDR4 GEN5 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Gigabyte | B660M DS3H AX DDR4 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| GigaIPC | uATX-Q870A | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| GigaIPC | uATX-Q670B | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| GigaIPC | uATX-Q670A | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| GigaIPC | uATX-H610B | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| GigaIPC | uATX-H610A | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| GigaIPC | uATX-W48EA | Intel® Core™ Processors (10th, 11th Gen) | LGA1200 |
| GigaIPC | uATX-Q47EA | Intel® Core™ Processors (10th, 11th Gen) | LGA1200 |
| GigaIPC | uATX-H410A | Intel® Core™ Processors (10th, 11th Gen) | LGA1200 |
| Jetway | UTX-ARS1-W880 | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| Jetway | UTX-ARS1-Q870 | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| Jetway | UTX-ARS1-H810 | Intel® Core™ Ultra Processors (Series 2) (15th Gen) | LGA1851 |
| Jetway | MM10-Q6700 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Jetway | MM10-H6100 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Jetway | LM26 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Kontron | K3843-B2 mATX | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Kontron | K3843-B mATX | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Kontron | K3842-Q mATX | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Kontron | K3841-Q mATX | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Mitac | PH10ADU | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| Mitac | PH10CMU | Intel® Core™ Processors (10th Gen) | LGA1200 |
| Mitac | PH10FEU | Intel® Core™ Processors (8th, 9th Gen) | LGA1151 |
| MSI | PRO B760M-P DDR4 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| MSI-IPC | MS-CF09 | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
| MSI-IPC | MS-98L2 | Intel® Core™ Processors (8th Gen) | LGA1151 |
| Supermicro | X13SAQ | Intel® Core™ Processors (12th, 13th, 14th Gen) | LGA1700 |
This list is maintained on a best-efforts basis; see the version date on each list. New and revised motherboards appear constantly, so it may be incomplete or out of date. Omission does not mean a board is incompatible. The list indicates mechanical and thermal suitability for this product only. Whether a motherboard supports a given CPU, and any BIOS version required, is determined by the motherboard manufacturer; please check their CPU support list.
Case compatibility is determined by the supported socket(s), maximum processor TDP and form factor stated in the product specification. Motherboards within those limits usually fit, but layout can still prevent installation, including heatsink keep-out areas, VRM height, connector placement and M.2 placement. TDP indicates thermal capability, not guaranteed sustained performance. Ambient temperature, workload, placement and BIOS power limits all affect a fanless system.
If in doubt, contact Akasa before purchasing, quoting the exact motherboard model and intended CPU.
All trademarks are the property of their respective owners. Brand references are for compatibility identification only and do not imply any affiliation or endorsement.