BBrainOutput
Supermicro·Workstation

Supermicro AI Workstation (L40S) — 128GB / 4TB / 2×GPU

A workstation built on the NVIDIA L40S 48GB with about 96GB of memory usable for AI — here’s what it runs and how it fits a private AI Business OS.

Configuration

AI memory
~96GB
Usable for models
~84.5GB
System RAM
128GB
Storage
4TB
GPUs
Chip
NVIDIA L40S 48GB

Compatible models

Open models graded for this exact configuration.

  • Qwen2.5 72B
    Qwen · ~72B · 128K ctx · Qwen License

    Fits at Q8_0 (~78GB) with ~6.5GB headroom — about 1 concurrent instance.

    Q8_0 · ~78GBRuns well
  • Llama 3.1 70B
    Llama · ~70B · 128K ctx · Llama Community License

    Fits at Q8_0 (~75GB) with ~9.5GB headroom — about 1 concurrent instance.

    Q8_0 · ~75GBRuns well
  • Llama 3.3 70B
    Llama · ~70B · 128K ctx · Llama Community License

    Fits at Q8_0 (~75GB) with ~9.5GB headroom — about 1 concurrent instance.

    Q8_0 · ~75GBRuns well
  • DeepSeek-R1 Distill Llama 70B
    DeepSeek · ~70B · 128K ctx · MIT

    Fits at Q8_0 (~75GB) with ~9.5GB headroom — about 1 concurrent instance.

    Q8_0 · ~75GBRuns well
  • Mixtral 8x7B (MoE)
    Mistral · ~47B · 32K ctx · Apache-2.0

    Fits at Q8_0 (~50GB) with ~34.5GB headroom — about 1 concurrent instance.

    Q8_0 · ~50GBRuns well
  • CodeLlama 34B
    CodeLlama · ~34B · 16K ctx · Llama Community License

    Fits at FP16 (~68GB) with ~16.5GB headroom — about 1 concurrent instance.

    FP16 · ~68GBRuns well
  • Qwen2.5 32B
    Qwen · ~32B · 128K ctx · Apache-2.0

    Fits at FP16 (~64GB) with ~20.5GB headroom — about 1 concurrent instance.

    FP16 · ~64GBRuns well
  • Qwen3 32B
    Qwen · ~32B · 128K ctx · Apache-2.0

    Fits at FP16 (~64GB) with ~20.5GB headroom — about 1 concurrent instance.

    FP16 · ~64GBRuns well

Other Supermicro AI Workstation (L40S) configurations →

Offers

  • Demo StoreDemo
    In stock · checked 2026-06-23
    $28,000Demo only
  • Demo MarketplaceDemo
    In stock · checked 2026-06-23
    $29,120Demo only

Pricing below is illustrative demo data — there are no live or affiliate links yet. Offers are kept separate from our editorial AI scores, which they never influence.

Turn the Supermicro AI Workstation (L40S) into a private AI Business OS

Run your own AI agents on hardware you control — private by design, no per-seat data leaving your premises. BrainOutput helps you pick the right machine and turn it into a working AI Business OS.