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Silver 1U rack server front with 24 E1.S drive bays

Supermicro

Supermicro SSG-121E-NES24R 1U 24-bay barebone server

SKU CH-A6G1-094V7 MPN SSG-121E-NES24R

A 1U barebone server housing 24 hot-swap E1.S NVMe bays with dual LGA-4677 Xeon sockets, 32 DDR5 DIMM slots and two PCIe 5.0 x16 slots

  • 24 hot-swap E1.S NVMe bays for dense all-flash storage
  • Dual Xeon Scalable sockets up to 270W TDP each
  • 32 DDR5-5600 DIMM slots supporting up to 8TB memory
  • Two PCIe 5.0 x16 slots plus two OCP 3.0 AIOM connectors
  • Redundant Titanium 2000W power supplies for high availability

1U 24-bay E1.S storage server

The Supermicro SSG-121E-NES24R is a 1U barebone server built for dense all-flash storage. It targets organisations that need 24 front-loading E1.S NVMe drives in a single rack unit. Dual Socket E (LGA-4677) support allows 5th or 4th generation Intel Xeon Scalable processors up to 270W TDP. This platform suits high-throughput workloads where drive density and PCIe 5.0 bandwidth are primary requirements.

PCIe 5.0 lane allocation limits

The chassis provides 24 E1.S bays and two PCIe 5.0 x16 slots plus two OCP 3.0 SFF AIOM connectors. Total CPU lane count governs how many devices can run at full x4 or x16 width simultaneously. Populating every bay and slot may force bifurcation or lane sharing that reduces per-device bandwidth. Builders must map their specific processor's lane budget against the desired drive and add-in card configuration before deployment.

24 hot-swap E1.S drive bays

The defining specification is the 24 front-accessible E1.S bays accepting 9.5 mm or 15 mm NVMe drives. This density fixes the maximum raw flash capacity per 1U node. Buyers who need more storage per rack unit or who require 2.5 inch or 3.5 inch drive form factors cannot use this chassis. The bay count and E1.S exclusivity are the decisive constraints for capacity planning.

How it compares

Measured against everything we stock in Barebone Servers & DIY Kits, at today’s prices. Recalculated every night.

Price $11,991.99
Pricier than about 90% of the 532 comparable items (median $2,503.49).

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Specifications

Size & build
Shipping weight20.87 kg
Package size1030 × 605 × 198 mm

Questions about this item

Should I choose the 9.5mm or 15mm E1.S drives for the 24 bays?

Both 9.5mm and 15mm E1.S NVMe drives fit the 24 hot-swap bays; select the thickness that matches your chosen drive model.

What does PCIe 5.0 mean for the two x16 slots once the server is running?

The two PCIe 5.0 x16 slots deliver the full bandwidth of the generation for GPUs, accelerators or networking cards installed in the chassis.

How does the OCP 3.0 SFF interface on the two AIOM connectors limit my network card choice?

The two AIOM connectors accept any OCP 3.0 SFF-compliant networking mezzanine card, restricting selection to that form factor and electrical spec.

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