Flux Box
Plug in. Configure. Done.
Flux Box is a compact, pre-configured appliance running DICOM Capacitor software. Most units ship as a Mac mini M4, though ASUS NUC and other ARM64 platforms are available depending on deployment requirements. Connect it to the network, configure your PACS destinations, and it starts routing.
- No server infrastructure required
- No OS installation or software setup
- No IT overhead — managed remotely by Flux
What's Inside
Hardware
- Platform — Apple Mac mini or ASUS NUC, depending on SKU
- Processor — Apple M-series (M4 or later) or
Intel Core i5 (12th gen or later) - Memory — 16 GB or 32 GB
- Storage —1 TB to 4 TB SSD depending on workload
- Power — under 30W typical
- Dimensions — 7.7 in × 7.7 in × 1.4 in, rack-mountable
Software
- DICOM Capacitor — full-featured store-and-forward router
- Remote management — Flux monitors and configures remotely
- Automatic updates — software kept current by Flux engineering

What It Does
Flux Box runs DICOM Capacitor with all capabilities included:
- Store-and-forward — cache studies locally, deliver when connectivity permits
- Intelligent routing — send studies to multiple PACS destinations based on configurable rules
- Tag manipulation — correct, standardize, and harmonize DICOM headers in transit
- Image compression — JPEG 2000 lossless/lossy, reducing study sizes up to 35%
- Worklist caching — serve modality worklists locally, sync when connected
- Format conversion — Hologic SCO and Siemens CTO to BTO conversion for mammography interoperability
- Prefetch — worklist-based prior study retrieval with smart filtering
- Adaptive networking — self-tuning timeouts, retries, and bandwidth management
For full software details, see the DICOM Capacitor product page.
Performance
Benchmarked natively on an Apple M4 with full screening mammography studies (avg 1.5 GiB per study):
Dynamic multi-threading scales across available CPU cores. Performance varies with study size and hardware.
Common Deployments
Mobile Imaging Vans
Flux Box is purpose-built for mobile coaches:
- Fire-and-forget — technologists send to Capacitor and move on
- Geolocation routing — auto-detects which facility the van is at
- Scheduled delivery — hold studies until docked on Wi-Fi
- Offline worklists — cached locally, synced when connected
Fixed-Site Departments
Flux Box also deploys in hospital departments:
- Multi-destination routing — distribute studies across PACS, CAD, VNA
- Prior study prefetch — retrieve relevant priors before the patient arrives
- PACS migration — managed data migration between systems
- Vendor integration — Siemens, Hologic, GE, and others
Deployment
Getting a Flux Box operational is straightforward:
- Connect — plug into power and network
- Configure — Flux engineers set up PACS destinations, routing rules, and worklist parameters remotely
- Validate — send test studies, confirm delivery to all destinations
- Go live — modalities point to Flux Box and start sending
Ongoing management is handled by Flux:
- Remote monitoring — Flux watches delivery queues, error rates, and connectivity
- Configuration changes — new destinations, routing rules, or filter updates applied remotely
- Software updates — Capacitor updates deployed with minimal disruption
- Support — direct access to Flux DICOM engineers
For installation guides, network requirements, and configuration reference, see the DICOM Capacitor documentation.
Get Started
Flux Box ships pre-configured for your environment. Tell us about your modalities, PACS destinations, and workflow requirements — we handle the rest.
