Supermicro CSE-813M — 1U Rackmount Server Chassis, 4x 3.5" Hot-Swap Bays
Technical Identity
The Supermicro CSE-813M (SuperChassis SC813M series) is a 1U rackmount server chassis with four 3.5" hot-swap drive bays and support for ATX motherboards up to 12" x 10". This listing is for the chassis only — no motherboard, CPU, memory, or drives are included. The SC813M family shipped from the factory with several power-supply options; the exact PSU model and wattage of each unit is per the unit label. Condition: Refurbished.
Specifications

Brand: Supermicro
Model / MPN: CSE-813M (SuperChassis SC813M series)
Product type: 1U rackmount server chassis (chassis only)
Drive bays: 4x 3.5" hot-swap
Backplane: 1U SAS/SATA backplane (per Supermicro SC813M documentation; verify backplane revision per unit)
Motherboard support: ATX up to 12" x 10"
Expansion: 1x full-height, half-length expansion card (riser configuration per unit — verify)
Depth: 19.85" (approx. 504 mm)
Cooling: internal fan set per SC813M documentation (installed fan count per unit)
Power supply: installed PSU model and wattage per unit label (SC813M family shipped with multiple factory PSU options)
Condition: Refurbished

Engineering Context
The SC813M series is Supermicro's short-depth, cost-optimized 1U platform generation, widely deployed for network appliances, firewalls, and general-purpose 1U servers. The platform is end-of-life at Supermicro; it remains in demand as a replacement chassis for fielded 813M-based systems and as a low-cost base for custom 1U builds where current-generation hardware is not required.
Use Cases

Replacement chassis for existing Supermicro 813M-based appliances and servers
Custom 1U firewall / router / network appliance builds (e.g., open-source routing stacks)
Lab, test, and spares inventory for legacy 1U fleets
Short-depth rack installations where a 19.85" chassis depth is required

What This Is NOT (Guardrails)

NOT a complete server. No motherboard, CPU, memory, drives, or operating system are included — chassis, backplane, and installed PSU only.
NOT a specific-PSU listing. The SC813M family shipped with multiple PSU options (fixed and redundant variants by suffix); the installed PSU is per the unit label — confirm before purchase if wattage matters.
NOT a 2.5" bay chassis. The four hot-swap bays are 3.5"; mounting 2.5" drives requires adapters that are not included.
NOT compatible with motherboards larger than 12" x 10". E-ATX and larger server boards will not fit per Supermicro SC813M documentation.
NOT supplied with rack rails, bezel, or cable accessories unless explicitly stated per unit.
NOT a current-generation product. The SC813M series is end-of-life at Supermicro — intended for legacy support, spares, and lab use.

Compatibility & Hard Constraints

Motherboards: ATX form factor up to 12" x 10". Typical platforms include Supermicro X-series boards of the matching era — verify standoff layout, rear I/O shield, and front-panel header pinout before installation.
Storage: hot-swap operation depends on the installed backplane revision and the host controller (onboard SATA or add-on HBA/RAID card) — verify per unit.
Expansion cards: one full-height half-length slot via riser; riser card presence and type per unit — verify.
Pre-deployment verification: confirm PSU connector set matches the target motherboard (24-pin / 8-pin CPU), fan headers, and backplane cabling before commissioning.

Frequently Asked Questions (FAQ)
Q. What is the Supermicro CSE-813M?
The CSE-813M is a 1U rackmount server chassis from the Supermicro SuperChassis SC813M series, with four 3.5" hot-swap drive bays, a SAS/SATA backplane, and support for ATX motherboards up to 12" x 10".
Q. Does the CSE-813M include a motherboard, CPU, RAM, or drives?
No. This is a chassis-only listing: the chassis, drive trays, backplane, and the factory-installed power supply. No motherboard, CPU, memory, drives, or software are included.
Q. Which power supply is installed in the CSE-813M?
The SC813M family shipped with several factory PSU options depending on the chassis suffix. The installed PSU model and wattage for each refurbished unit is per the unit label — contact T.E.S IT-SOLUTIONS to confirm the PSU of the specific unit before ordering.
Q. What motherboard sizes fit the CSE-813M?
ATX motherboards up to 12" x 10" per Supermicro SC813M documentation. Larger E-ATX server boards do not fit. Verify standoff positions and the rear I/O cutout against your board before installation.
Q. Can I use 2.5" drives in the CSE-813M hot-swap bays?
The four hot-swap bays are 3.5". 2.5" drives require 3.5"-bay adapters, which are not included with this chassis.
Q. What condition is the CSE-813M supplied in by T.E.S IT-SOLUTIONS?
Refurbished. Each CSE-813M unit is inspected, cleaned, and checked for mechanical integrity (trays, backplane, PSU power-on where applicable), then packed in professional anti-static packaging. EU stock, global B2B shipping.
Why T.E.S IT-SOLUTIONS
Every unit ships with: (1) functional inspection where test topology is available, (2) full cosmetic inspection, (3) professional anti-static packaging, (4) global B2B shipping from EU stock, (5) technical consultation for legacy platform support at no extra cost.
Condition: Refurbished — chassis only, PSU configuration per unit label.