Supermicro SYS-221BT-HNR

MPN / P/N

SYS-221BT-HNR

Multi-node specification scope

Processor, memory, slot and drive limits apply per node unless explicitly labeled shared-system. Do not merge per-node and shared-system resources.

Supply scope — exact configuration agreed separately

Configurable server platform, not a fixed installed CPU/RAM/storage build. Per-node and shared resources remain separate on multi-node systems.

Manufacturer model

SYS-221BT-HNR

Per-node processor support

Socket E (LGA 4677) support 5th/4th Gen Intel® Xeon® Scalable processors

Per-node platform capability

Intel® C741

Per-node memory support

16 DIMM Slots supporting up to 4TB of memory; ECC RDIMMs up to DDR5-5600

Per-node expansion support

2 PCIe 5.0 x16 (LP) slot; Tool-less support Internal PCIe 4.0 for 2 x4 M.2 NVMe support onboard Optional M.2 (22x80) HW RAID1 NVMe Boot Controller via SCC-A2NM2241G3-B1

Per-node networking support

Network connectivity via AIOM (OCP 3.0 compliant)

Per-node expansion support 2

6 hot-swap PCIe 5.0 NVMe 2.5" drives; All Flash NVMe

Shared-system cooling configuration

Liquid Cooling Support 4 cooling fans per 2U enclosure, 16K RPM; Shared Cooling Design, Counter-Rotating

Shared-system power supply configuration

3000W Redundant Power Supplies Titanium Level (96%+); Shared Power Design

System node topology

Four hot-pluggable systems (nodes) in a 2U form factor. Each node supports the following:

Chassis height

3.47" (88 mm)

Chassis width

17.68" (449 mm)

Chassis depth

28.75" (730 mm)

Platform form factor

2U Rackmount

Documented selection limits

Configurable server platform: CPU, RAM, drives, GPUs, networking adapters and optional licenses are not asserted to be installed. All capacities are supported limits or configuration options, not delivered capacity. Agree the exact BOM separately. Multi-node counts and limits retain per-node versus shared-system scope. NVMe/SAS/SATA, risers, cooling and power redundancy may require specific optional hardware and workload validation. No stock or lifecycle guarantee.

Specification source: Supermicro ↗
Checked against documentation: 19.10.2026