Multi-region, US vs EU networking gear has different voltage + fiber standards. How does Magento handle that?

Networking gear is more region-specific than most e-commerce verticals:

• Voltage, US power supplies (110V, NEMA 5-15P / C13, C14), EU (230V, Schuko / C13, C14), UK (230V, BS1363), AU (230V, AS/NZS 3112). Cisco / Aruba / Juniper ship region-specific SKUs with different part numbers.
• Fiber + optics, SFPs are mostly region-agnostic but DWDM channel plans differ (ITU-T G.694.1 fixed in EU, more flexible in US). 10GBASE-T copper has different distance ratings on certain Cat6A vs Cat6 standards by region.
• WiFi regulatory domains, FCC (US), ETSI (EU), MIC (Japan), ACMA (AU). Same Cisco Meraki MR46 ships as different SKUs (MR46-HW for US, MR46-HW-EU for EU, etc.) with different power tables baked into firmware.
• Compliance marks, FCC (US), UL (US/Canada), CE + UKCA + RoHS (EU/UK), C-Tick / RCM (AU). Visible on product datasheet.

The Magento architecture: Multi-Source Inventory (MSI) with region-specific stocks. Define sources per region (us_warehouse, eu_warehouse, uk_warehouse, au_warehouse) and stocks (us_stock, eu_stock, etc.). Customer geo-routes to a stock; stock surfaces only the SKUs available in that region (a US Cisco SKU is invisible to an EU customer, the equivalent EU SKU is invisible to a US customer).

Store views per region: prices in local currency (USD, EUR, GBP, AUD), VAT handling per EU country, region-specific datasheet URLs (OEM datasheets are region-specific). One Magento instance, four storefronts, region-aware catalog.