Running Microsoft's Server Essentials 2012 Workgroup edition, Seagate's Business Storage Windows Server NAS box is a good fit for Windows-centric houses. But it's pricey for the features provided.

Egnyte is now an "online file server." Designed for small businesses, the pitch is that instead of going out and buying a file server for your workgroup, you instead rent server access from Egnyte ...

The Fastora NAS-104 features Microsofts Windows Storage Server 2003 operating system and is thus more suited to Windows environments than previous Fastora versions, which used Axiomteks FreeBSD ...

QNAP Expands Turbo NAS lineup with New Entry-level 4-drive Rack-mounted NAS Server for Workgroup and SMB Customers ...

If you're looking for a small server rather than a custom NAS device, you might like the Thecus W2810PRO that runs Windows Storage Server 2012 R2 Essentials, giving great power with a learning curve.