Alternate color or configuration shown Asrock 4U18N-B550/2T server barebone Rack (4U) Asrock 4U18N-B550/2T. Supported memory types: DDR4-SDRAM, Memory form factor: 288-pin DIMM, Memory voltage: 1.2 V. Supported storage drive interfaces: M.2, Serial ATA, Serial Attached SCSI (SAS). On-board graphics card model: Aspeed AST2500. BIOS type: UEFI AMI, BIOS memory size: 256 Mbit. Chassis type: Rack (4U), LED indicators: HDD, System, Cooling type: Active Manufacturer: Asrock SKU: 6816933 Manufacturer part number: 4U18N-B550/2T UPC: 4710483940019 MSRP: $19,164.75 Price: $17,415.55 Qty: Add to cart Custom wishlist OK Add to wishlist Add to compare list Email a friend 4U chassis with 18 nodes support 36 x 2.5'' NVMe SSD, 1600W Redundant (3+1) PSUSupports AMD Ryzen™ 5000, 4000G, 3000G, 3000 series Processors4 DDR4 ECC/ non-ECC UDIMM, up to 32GB eachSupports 2 x 2.5" NVMe SSD per nodeSupports 2 M.2 per nodeIntegrated IPMI 2.0 and KVM with Dedicated LAN2x RJ45 (10GbE) by Intel® X710-AT2 Overview Specifications Contact Us 4U chassis with 18 nodes support 36 x 2.5'' NVMe SSD, 1600W Redundant (3+1) PSUSupports AMD Ryzen™ 5000, 4000G, 3000G, 3000 series Processors4 DDR4 ECC/ non-ECC UDIMM, up to 32GB eachSupports 2 x 2.5" NVMe SSD per nodeSupports 2 M.2 per nodeIntegrated IPMI 2.0 and KVM with Dedicated LAN2x RJ45 (10GbE) by Intel® X710-AT2 Products specifications Attribute name Attribute value Width Y Height 288-pin DIMM Depth 17716.5" On-board graphics card model Aspeed AST2500 Built-in processor N Supported storage drive interfaces M.2, Serial ATA, Serial Attached SCSI (SAS) ACPI version 2.0 Number of DIMM slots 32 Hot-swap HDD bays Y IPMI LAN (RJ-45) port Y System Management BIOS (SMBIOS) version 2.8 BIOS type UEFI AMI 80 PLUS certification 80 PLUS Platinum Number of 2.5" bays 2 Supported memory types DDR4-SDRAM BIOS memory size 256 Mbit USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity 4 Design Chassis type Rack (4U) Features LED indicators 0 - 118110.2" Number of fans 5 fan(s) Memory form factor 288-pin DIMM Memory voltage 1.2 V Cooling type Active On/off switch Y Performance Ethernet LAN Y Reset button Y Ports & interfaces Ethernet LAN (RJ-45) ports 2 VGA (D-Sub) ports quantity 1 Power Power supply 1600 W AC input voltage 100 - 240 V Operational conditions Operating temperature (T-T) 10 - 35 °C Storage temperature (T-T) -40 - 70 °C Operating relative humidity (H-H) 20 - 90 % Storage Number of storage drives supported 2 Your name * Your email * Enquiry * Submit Products specifications Attribute name Attribute value Width Y Height 288-pin DIMM Depth 17716.5" On-board graphics card model Aspeed AST2500 Built-in processor N Supported storage drive interfaces M.2, Serial ATA, Serial Attached SCSI (SAS) ACPI version 2.0 Number of DIMM slots 32 Hot-swap HDD bays Y IPMI LAN (RJ-45) port Y System Management BIOS (SMBIOS) version 2.8 BIOS type UEFI AMI 80 PLUS certification 80 PLUS Platinum Number of 2.5" bays 2 Supported memory types DDR4-SDRAM BIOS memory size 256 Mbit USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity 4 Design Chassis type Rack (4U) Features LED indicators 0 - 118110.2" Number of fans 5 fan(s) Memory form factor 288-pin DIMM Memory voltage 1.2 V Cooling type Active On/off switch Y Performance Ethernet LAN Y Reset button Y Ports & interfaces Ethernet LAN (RJ-45) ports 2 VGA (D-Sub) ports quantity 1 Power Power supply 1600 W AC input voltage 100 - 240 V Operational conditions Operating temperature (T-T) 10 - 35 °C Storage temperature (T-T) -40 - 70 °C Operating relative humidity (H-H) 20 - 90 % Storage Number of storage drives supported 2