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2-Bay NAS Buying Guide: Synology DS725+, DS225+, Iron Cow Zero 1, and a Used Linksys NAS200

Compare four two-bay network storage listings: a $560.99 Synology DS725+, a $372.49 Synology DS225+, a $79.95 Iron Cow Zero 1, and a $30 used Linksys NAS200, then match the best one to your needs.

Last updated Aug 17, 2026

Choosing among these four network storage listings comes down to how much hardware you want inside, how much you're comfortable spending, and whether a used unit works for you. The two Synology models are complete diskless systems, the Iron Cow Zero 1 is a new unit, and the Linksys NAS200 is a used unit sold for parts.

Quick Take

The Synology DS725+ is the highest-priced option and offers the most detailed hardware list in this set. The Synology DS225+ gives you a lower listed price from the same family. The Iron Cow Zero 1 and the Linksys NAS200 are the two non-Synology entries, with the latter listed as for parts.

Listed Price Comparison

ProductListed PriceBar
Synology DS725+ Diskless System Network - StorageUSD 560.99
Synology DS225+ Diskless System Network - StorageUSD 372.49
IRON COW ZERO 1 NETWORK STORAGE SYSTEM 2-BAY NAS ENCLOSURE 2.5GbE LANUSD 79.95
for Parts* Linksys NAS200 Network Storage System NAS Enclosure w/ Power AdapterUSD 30.00

Decision Matrix

ProductBest forTrade-off
Synology DS725+RAID flexibility and a faster CPUHighest listed price in this set
Synology DS225+Backup and streaming with lower power draw2GB DDR4 is half the RAM of the DS725+
Iron Cow Zero 1New unit at a modest priceListed details focus on hardware and an app-based interface, with RAID options not covered
Linksys NAS200A cost-conscious used projectSold for parts; rattle and wear noted

Product Notes

Synology DS725+ Diskless System Network - Storage

Synology DS725+ Diskless System Network - Storage

At USD 560.99, this is the highest-priced item in the roundup, and it also has the most thorough hardware description. The 2-bay diskless NAS lists an AMD Ryzen R1600, 4GB DDR4 ECC SODIMM, SATA interfaces, and RAID 0, 1, 5, 6, 10, and JBOD support. If your priority is RAID flexibility and a more capable processor, this Synology is the strongest match in the comparison. The limitation is the price: it is the highest listed price in this group, and you still need to add your own drives.

Synology DS225+ Diskless System Network - Storage

Synology DS225+ Diskless System Network - Storage

The DS225+ is listed at USD 372.49, which is $188.50 less than the DS725+ in this set. It is also a 2-bay diskless NAS with SATA interfaces, and it comes with 2GB DDR4. The listed details highlight backup and media streaming as primary uses and list power consumption of 16.98W under access and 6.08W during HDD hibernation. If you want a Synology system with lower power draw and a lower price, this is the balanced pick. The trade-off is that its installed RAM is 2GB, compared with 4GB ECC SODIMM on the DS725+, and the DS225+ focuses on backup and streaming rather than RAID modes.

IRON COW ZERO 1 NETWORK STORAGE SYSTEM 2-BAY NAS ENCLOSURE 2.5GbE LAN

IRON COW ZERO 1 NETWORK STORAGE SYSTEM 2-BAY NAS ENCLOSURE 2.5GbE LAN

From merchant u7Ev4zWSl, this unit is priced at USD 79.95. The title highlights the 2-bay design and the 2.5GbE LAN port. The listed details add an RK3568 4-core 2GHz processor, an ARM Mali G52 GPU, an NPU, HDMI, and support for two 24TB drives. If you want a NAS enclosure with a 2.5GbE LAN port at a modest listed price, this is the clearest option in the list. The limitation is that the storage-management side gets less attention in the listed information: the focus is on hardware and an app-based interface, with RAID and configuration choices not spelled out.

for Parts* Linksys NAS200 Network Storage System NAS Enclosure w/ Power Adapter

for Parts* Linksys NAS200 Network Storage System NAS Enclosure w/ Power Adapter

Listed at USD 30.00, this is the lowest-priced item and the only used unit in the group. The title says "for Parts," and the item powers on, was previously connected to a PC, and comes with a power adapter and Ethernet cable, but has a rattle and is sold as-is. If you want an inexpensive enclosure to tinker with and already expect to do some troubleshooting, this Linksys could be a starting point. The limitation is the condition: normal wear, a rattle, and a for-parts designation mean you should not expect a flawless plug-and-play NAS.

Final Recommendation by Use Case

  • For the highest-spec two-bay NAS in this list: start with the Synology DS725+.
  • For a lower-priced Synology with backup and streaming in mind: look at the Synology DS225+.
  • For a 2.5GbE LAN port at a low price: look at the Iron Cow Zero 1 from merchant u7Ev4zWSl.
  • For a low-budget used project: the Linksys NAS200 is the one.
Products in this article
Synology DS725+ Diskless System NetworkUSD 560.99View on eBaySynology DS225+ Diskless System NetworkUSD 372.49View on eBayIRON COW ZERO 1 NETWORK STORAGE SYSTEM 2-BAY NAS ENCLOSURE 2.5GbE LANUSD 79.95View on eBayfor Parts* Linksys NAS200 Network Storage System NAS Enclosure w/ Power AdapterUSD 30.00View on eBay
Synology DS725+ Diskless System NetworkUSD 560.99View on eBaySynology DS225+ Diskless System NetworkUSD 372.49View on eBayIRON COW ZERO 1 NETWORK STORAGE SYSTEM 2-BAY NAS ENCLOSURE 2.5GbE LANUSD 79.95View on eBayfor Parts* Linksys NAS200 Network Storage System NAS Enclosure w/ Power AdapterUSD 30.00View on eBay

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