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1U silver rack server front with eight 2.5 drive bays

Supermicro

Supermicro SYS-121C-TN2R barebone server, dual LGA-4677, 16 DIMM DDR5-4800, 8×2.5" bays

SKU CH-1GA4-ZZSQS MPN SYS-121C-TN2R

1U barebone server supporting dual LGA-4677 Xeon CPUs, 16 DDR5-4800 DIMM slots and eight 2.5-inch hot-swap bays with two NVMe slots

  • Dual-socket capacity for heavy workloads with two LGA-4677 Xeon processors
  • Massive memory headroom via 16 DDR5-4800 DIMM slots
  • Flexible storage density from eight 2.5-inch hot-swap bays
  • High-speed expansion using PCIe 5.0 x16 and OCP 3.0 slots
  • Dedicated management access through separate IPMI LAN port

Dual LGA-4677 barebone for dense compute

This 1U Supermicro SYS-121C-TN2R barebone accepts two 4th Gen Intel Xeon Scalable processors and sixteen DDR5-4800 RDIMM slots for up to 4 TB of ECC memory. It targets web serving, firewall, CDN and edge workloads that need high core counts in a single rack unit.

Tool-less rails and hot-swap bays simplify

The chassis ships with tool-less mounting rails and eight front-access 2.5" hot-swap drive bays, two of which are hybrid NVMe/SATA/SAS. PCIe 5.0 x16 full-height half-length slots and OCP 3.0 AIOM modules install without cables, but the dense layout leaves little finger room around the CPU sockets and memory risers.

Verify CPU cooler height and power phasing

Confirm that your chosen LGA-4677 heatsinks fit the 1U height limit and that the motherboard power phasing matches the TDP of the specific Xeon SKUs you plan to install. Ensure the AIOM networking cards you select are OCP 3.0 compliant and that your rack provides sufficient rear airflow for the dual-socket thermal design.

Highlights

  • Dual-socket capacity for heavy workloads with two LGA-4677 Xeon processors
  • Massive memory headroom via 16 DDR5-4800 DIMM slots
  • Flexible storage density from eight 2.5-inch hot-swap bays
  • High-speed expansion using PCIe 5.0 x16 and OCP 3.0 slots
  • Dedicated management access through separate IPMI LAN port

Specifications

No published specifications for this item yet.

Questions about this item

How do I confirm the dual LGA-4677 sockets are active after installing 4th Gen Xeon processors?

The system will POST and show both CPUs in BIOS; IPMI provides remote health monitoring over the dedicated LAN port.

What comes with the barebone and which parts must I add?

Chassis, motherboard, dual-socket board, 8×2.5" hot-swap backplane, two PCIe 5.0 x16 FHHL slots, two PCIe 5.0 x16 OCP 3.0 AIOM slots, two PCIe 5.0 x4 M.2 slots, and IPMI LAN are included; you must supply Xeon CPUs, DDR5-4800 RDIMMs, and SATA/SAS or NVMe drives.

Which DDR5 capacity should I choose for the 16 DIMM slots?

Populate all 16 slots with matching RDIMMs to reach the 4 TB maximum; DDR5-4800 speed is fixed by the platform.

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