Ubiquiti UISP-S-PRO vs Ubiquiti USW-PRO-24-POE: Specification Comparison
Both the Ubiquiti UISP-S-PRO and USW-PRO-24-POE are 24-port managed Gigabit PoE switches in 1U rack-mount enclosures, targeting network infrastructure deployments where Power over Ethernet delivery, switching throughput, and management flexibility are the primary buying criteria. The UISP-S-PRO is positioned for carrier and enterprise UISP-ecosystem deployments, while the USW-PRO-24-POE targets dense access-layer installations with a high PoE power budget and 10G uplinks. Both share the same port count and Gigabit access speeds, making them genuine cross-shop candidates.
In This Guide
- Which switch delivers more PoE headroom and uplink bandwidth for dense deployments?
- How do the two switches compare on fabric throughput, forwarding rate, and VLAN scale?
- Which switch offers broader management options, certifications, and environmental ratings?
- Which should you choose: the UISP-S-PRO or the USW-PRO-24-POE?
- Side-by-Side Specs
- FAQ
Which switch delivers more PoE headroom and uplink bandwidth for dense deployments?
The USW-PRO-24-POE specifies a 400W PoE++ (802.3bt) power budget across its 24 RJ-45 ports, supported by an internal 450W power supply (50W consumed by the switch itself). This budget is sufficient to power 16–20 high-draw devices such as PTZ cameras or Wi-Fi 6 access points without external injectors. The UISP-S-PRO specifies PoE on all 24 ports at the 802.3af standard (maximum 15.4W per port), but no aggregate PoE power budget figure is provided in the available specifications.
On uplinks, the USW-PRO-24-POE adds two 10G SFP+ ports beyond its 24 Gigabit RJ-45 ports, enabling high-bandwidth uplinks to a core switch or aggregation layer. The UISP-S-PRO's specifications do not document any uplink ports beyond the 24 Gigabit access ports. Buyers requiring 10G backbone connectivity or PoE++ for high-wattage devices will find the USW-PRO-24-POE's specs explicitly cover both needs; the UISP-S-PRO's specs do not address either.
How do the two switches compare on fabric throughput, forwarding rate, and VLAN scale?
The USW-PRO-24-POE publishes detailed performance figures: 88 Gbps switching capacity, 44 Gbps non-blocking throughput, 65 Mpps forwarding rate, and support for up to 1,000 VLANs. These numbers indicate wire-speed, non-blocking operation across all 24 Gigabit ports plus the two 10G SFP+ uplinks.
The UISP-S-PRO's specifications do not include switching capacity, forwarding rate, or VLAN count figures. Both products list VLAN support as a feature for the UISP-S-PRO, but no numeric VLAN limit is documented. Buyers who require validated throughput data or defined VLAN scale for network design or procurement compliance will find the UISP-S-PRO's available specifications insufficient to confirm performance equivalence.
Which switch offers broader management options, certifications, and environmental ratings?
The UISP-S-PRO specifies Web GUI, CLI, and SNMP management, with VLAN, QoS, Port Mirroring, and Link Aggregation listed as supported features. It also includes Bluetooth Low Energy (BLE), which may support out-of-band provisioning within the UISP ecosystem. The USW-PRO-24-POE specifies management via Ethernet (consistent with UniFi controller-based management) but does not explicitly list CLI, SNMP, QoS, or Port Mirroring in the provided specifications.
On compliance and environmental ratings, the USW-PRO-24-POE holds NDAA Section 889 compliance — a procurement requirement for U.S. federal and many state/local government projects — plus CE, FCC, IC, and Anatel certifications. It also documents an operating temperature range of -5 to 40°C and an SGCC steel enclosure. The UISP-S-PRO does not list NDAA compliance, certifications, operating temperature range, or enclosure material in its available specifications. Both carry a manufacturer warranty; no warranty term is specified for either model.
Which should you choose: the UISP-S-PRO or the USW-PRO-24-POE?
Our take: The USW-PRO-24-POE is the stronger choice when PoE power budget, uplink bandwidth, and regulatory compliance are the primary selection criteria. It specifies a 400W PoE++ (802.3bt) budget versus the UISP-S-PRO's 802.3af-only PoE with no stated aggregate budget — a critical delta for deployments with high-wattage cameras, Wi-Fi 6E APs, or PoE-powered intercoms. Its dual 10G SFP+ uplinks and 88 Gbps / 44 Gbps non-blocking fabric provide documented headroom the UISP-S-PRO's specs do not supply. NDAA Section 889 compliance on the USW-PRO-24-POE opens government and public-sector procurement channels where the UISP-S-PRO's specs offer no equivalent confirmation. The UISP-S-PRO may suit UISP-ecosystem carrier or ISP deployments where BLE provisioning, SNMP management, and 802.3af-class PoE suffice, but buyers should request a full datasheet to confirm throughput and power budget before specifying it in a competitive design.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | Ubiquiti UISP-S-PRO | Ubiquiti USW-PRO-24-POE |
|---|---|---|
| SKU / MPN | UISP-S-PRO | USW-PRO-24-POE |
| Access Ports | 24× Gigabit RJ-45 | 24× Gigabit RJ-45 |
| Uplink Ports | — | 2× 10G SFP+ |
| PoE Standard | 802.3af | 802.3bt (PoE++) |
| PoE Power Budget | — | 400W |
| Total Power Supply | — | 450W internal (50W switch + 400W PoE) |
| Switching Capacity | — | 88 Gbps |
| Non-Blocking Throughput | — | 44 Gbps |
| Forwarding Rate | — | 65 Mpps |
| VLAN Support | Yes (count not specified) | Up to 1,000 |
| Management Interfaces | Web GUI, CLI, SNMP | Ethernet (UniFi controller) |
| QoS / Port Mirroring / LAG | Yes (all three listed) | — |
| Bluetooth (BLE) | Yes | — |
| NDAA Section 889 Compliant | — | Yes |
| Certifications | — | CE, FCC, IC, Anatel |
| Operating Temperature | — | -5 to 40°C (23 to 104°F) |
| Enclosure Material | — | SGCC Steel |
| Weight | 11 lb (4.99 kg) | 9.5 lb (4.3 kg) |
| Form Factor | 19-inch rack-mount | 1U Rack-mount (442 × 285 × 44 mm) |
| Country of Origin | CN | — |
Frequently Asked Questions
Which should you choose: the UISP-S-PRO or the USW-PRO-24-POE?
The USW-PRO-24-POE is the stronger choice when PoE power budget, uplink bandwidth, and regulatory compliance are the primary selection criteria. It specifies a 400W PoE++ (802.3bt) budget versus the UISP-S-PRO's 802.3af-only PoE with no stated aggregate budget — a critical delta for deployments with high-wattage cameras, Wi-Fi 6E APs, or PoE-powered intercoms. Its dual 10G SFP+ uplinks and 88 Gbps / 44 Gbps non-blocking fabric provide documented headroom the UISP-S-PRO's specs do not supply. NDAA Section 889 compliance on the USW-PRO-24-POE opens government and public-sector procurement channels where the UISP-S-PRO's specs offer no equivalent confirmation. The UISP-S-PRO may suit UISP-ecosystem carrier or ISP deployments where BLE provisioning, SNMP management, and 802.3af-class PoE suffice, but buyers should request a full datasheet to confirm throughput and power budget before specifying it in a competitive design.
Is the UISP-S-PRO or USW-PRO-24-POE better for powering high-wattage devices like PTZ cameras or Wi-Fi 6 access points?
Based on available specifications, the USW-PRO-24-POE is the documented choice for high-wattage PoE loads. It specifies a 400W PoE++ (802.3bt) budget and a 450W internal power supply. The UISP-S-PRO lists 802.3af PoE (maximum 15.4W per port) with no aggregate power budget stated in its specifications, making it unsuitable for devices that require 802.3at (30W) or 802.3bt (up to 90W) power delivery.
Can either switch be used in a U.S. federal or government project requiring NDAA compliance?
Only the USW-PRO-24-POE explicitly lists NDAA Section 889 compliance in its specifications. The UISP-S-PRO's available specifications do not reference NDAA compliance. Both products are manufactured in China (UISP-S-PRO lists Country of Origin: CN; USW-PRO-24-POE's NDAA compliance status is stated in its specs). Procurement officers should verify the USW-PRO-24-POE's NDAA status against the current TAA/NDAA approved product list before specifying.
Does the UISP-S-PRO support SNMP and CLI management the way the USW-PRO-24-POE does?
The UISP-S-PRO's specifications explicitly list CLI, Web GUI, and SNMP support, along with VLAN, QoS, Port Mirroring, and Link Aggregation. The USW-PRO-24-POE's available specifications list management via Ethernet — consistent with UniFi Network controller-based management — but do not explicitly document CLI access, SNMP, QoS, or Port Mirroring. Buyers requiring vendor-agnostic SNMP polling or CLI scripting should verify USW-PRO-24-POE capabilities against Ubiquiti's full datasheet before specifying.
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