keepLiNK
Outdoor Industrial PoE Switch Box, Integrated 8 Ports Gigabit PoE Switch Unmanaged, 2 SFP Slots, 300W Power Supply, Air Circuit Breaker, AC Lightning Arrester, IP55 Durable Metal Casing
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
SpecPicks Verdict
SpecPicks classifies Outdoor Industrial PoE Switch Box, Integrated 8 Ports Gigabit PoE Swi… as a category leader on buyer feedback in the display & crt accessories category, based on 2 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. keepLiNK's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for display & crt accessories of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 5.0★ average across customer reviews
- ✓ Backed by keepLiNK's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- 【Built in Industrial PoE Switch Module】Full gigabit ports, 8 PoE+ ports, 2 SFP slots. Supports IEEE802.3af/at protocol, with a maximum power of 30W per port and a maximum power of 300W for the entire machine.
- 【IP55 Protection Level】Industrial grade protection capability: Dustproof, waterproof, shockproof, anti severe weather, anti electromagnetic radiation.The box is equipped with a lock and a key, effectively preventing theft.
- 【Lightning Protection】Built-in lightning arrester and air circuit breaker, can effectively prevent lightning strikes and overload operation.
- 【Durable and Sturdy】The box is made of 1.2mm thick galvanized steel plate, which is very sturdy and can effectively prevent rust. The box volme is 13.39 * 9.65 * 9.45 inches.
- 【Additional Functions】Equipped with 4 built-in dip switches: AI PoE, 820.21ft ultra long distance transmission (Note that the transmission bandwidth will drop to 10Mbps in this mode), port isolation, QoS.
- 【Fan Cooling】The box comes with a built-in cooling fan, and the machine can adapt to a working temperature range of 4 ℉ to 167 ℉/-20 ℃ to 75 ℃.
Full Specifications
| Brand | keepLiNK |
|---|---|
| Model | S340-N28-AC22-FR |
| Material | Metal |
| Phase Type | Single Phase |
| Part Number | KP-9000-S340-N28-AC22 |
| Compatibility | Switch |
| Material Type | Metal |
| Number Of Circuits | 1 |
| Included Components | Outdoor Smart Box x 1 |
| Warranty Description | 2 year manufacturer |
| Item Dimensions L x W x H | 9.45"L x 13.39"W x 9.65"H |
Ready to buy?
Outdoor Industrial PoE Switch Box, Integrated 8 Ports Gigabit PoE Switch Unmanaged, 2 SFP Slots, 300W Power Supply, Air Circuit Breaker, AC Lightning Arrester, IP55 Durable Metal Casing is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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