CyberPower OL6KRTHD vs Vertiv GXT5-6000MVRT4UXLN: Specification Comparison
Both units are 6 kVA / 6,000 W double-conversion online UPS systems designed for rackmount deployment in IT and critical-infrastructure environments. The CyberPower OL6KRTHD and the Vertiv GXT5-6000MVRT4UXLN occupy the same power class and topology tier, making them direct cross-shop candidates for buyers evaluating a mid-range online UPS for server rooms, network closets, or edge sites requiring true sine-wave, double-conversion protection with remote management capability.
In This Guide
- How do the two units compare on input/output electrical specifications and power quality?
- Which unit offers broader remote management, protocol support, and integration options?
- How do the units differ in physical footprint, weight, environmental ratings, and compliance listings?
- Which should you choose: the OL6KRTHD or the GXT5-6000MVRT4UXLN?
- Side-by-Side Specs
- FAQ
How do the two units compare on input/output electrical specifications and power quality?
Both units deliver 6,000 VA / 6,000 W at unity power factor (PF 1.0), so there is no capacity advantage on paper. The CyberPower OL6KRTHD specifies an input operating range of 120–280 V with a 40–70 Hz input frequency window and an output voltage range of 120–240 V at 50/60 Hz. Output voltage THD is listed at ≤5% and crest factor at 3:1. Input power factor is stated as 0.99.
The Vertiv GXT5-6000MVRT4UXLN lists a typical input of 208 VAC with an operational range of 176–280 VAC, and output of 208/120 VAC (user-configurable). Vertiv publishes efficiency figures—up to 98% in Active ECO Mode and up to 95% in full on-line mode—whereas CyberPower's provided specs do not include an efficiency rating. Output THD, crest factor, and input power factor are not stated for the Vertiv unit in the supplied specifications.
A key electrical distinction is input voltage architecture: the OL6KRTHD accommodates a wider low-end input floor (120 V minimum stated) while the GXT5-6000MVRT4UXLN is positioned as a 208 VAC primary-input unit with a 176 V floor, reflecting its three-phase or 208 V single-phase data-center orientation. Buyers on standard 120 V branch circuits should note this difference carefully.
Which unit offers broader remote management, protocol support, and integration options?
The Vertiv GXT5-6000MVRT4UXLN ships with a factory pre-installed Vertiv RDU101 SNMP/web card and also includes USB, RS485, RS232, a terminal block, and an external battery connector port. SNMP and web management are enabled out of the box, and a serial connection supports out-of-band management. The control panel is a full-color graphic LCD with gravity-sensing orientation for flexible rack or tower installation.
The CyberPower OL6KRTHD is described as including an RMCARD (remote management card) in its product name/configuration, indicating network management capability is included. However, the provided specifications do not enumerate specific protocols (SNMP version, web UI, serial ports, or additional interface types) beyond that reference. No display type or out-of-band management method is listed in the supplied specs.
On the basis of the provided specifications, the Vertiv unit's management stack is more fully documented: multiple interface types, explicit SNMP/web enablement, and a named communications card with stated protocols give integrators clearer planning data. The CyberPower RMCARD inclusion is noted but its protocol and interface details are not confirmed in the provided spec set.
How do the units differ in physical footprint, weight, environmental ratings, and compliance listings?
The Vertiv GXT5-6000MVRT4UXLN provides full dimensional data: 6.8 in H × 16.9 in W × 25.6 in D, weighing 125.6 lb, with a rack/tower convertible form factor occupying approximately 4U. Operating temperature is rated +32 to +104 °F (0 to 40 °C). Compliance listings include ENERGY STAR 2.0, UL1778, c-UL, RoHS2, and REACH.
The CyberPower OL6KRTHD is described as a 2U rackmount unit in its product title, which indicates a lower rack footprint than the Vertiv's 4U equivalent. However, the provided specifications for the OL6KRTHD do not include dimensional measurements, weight, or operating temperature range. Audible noise is listed at 65 dB. A 3-year warranty is referenced in the product name; no warranty duration is stated in the Vertiv spec set provided.
EMI/RFI filtering and surge protection are both confirmed present on the OL6KRTHD. Neither of those features is explicitly listed in the Vertiv specifications provided, though they are standard attributes of double-conversion topology. Compliance certifications are only documented for the Vertiv unit in the supplied data.
Which should you choose: the OL6KRTHD or the GXT5-6000MVRT4UXLN?
Our take: The GXT5-6000MVRT4UXLN is the stronger choice when documented efficiency, multi-protocol management out of the box, and certified compliance listings are decision criteria, while the OL6KRTHD is the stronger choice when a 2U rack footprint, a wider low-end input voltage floor, and confirmed output power-quality figures (≤5% THD, 3:1 crest factor, 0.99 input PF) are priorities. Three concrete spec deltas: (1) efficiency—Vertiv states up to 98% ECO / 95% on-line; CyberPower efficiency is not provided; (2) rack height—OL6KRTHD is specified as 2U vs. Vertiv's 4U-class chassis; (3) management interfaces—Vertiv lists six distinct interface types with SNMP/web pre-installed, while CyberPower's RMCARD is referenced but not enumerated in the provided specs. Buyers standardizing on 208 VAC data-center infrastructure with ENERGY STAR mandates will favor the Vertiv; buyers on mixed 120–240 V environments needing a compact 2U chassis with tight power-quality specs will favor the CyberPower.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | CyberPower OL6KRTHD | Vertiv GXT5-6000MVRT4UXLN |
|---|---|---|
| Topology | Double-conversion (Online) | On-line double conversion |
| Power Rating | 6,000 VA / 6,000 W | 6,000 VA / 6,000 W |
| Output Power Factor | 1.0 | — |
| Input Power Factor | 0.99 | — |
| Input Voltage Range | 120–280 VAC | 176–280 VAC (typical 208 VAC) |
| Output Voltage Range | 120–240 VAC | 208/120 VAC (user-configurable) |
| Input Frequency | 40–70 Hz | — |
| Output Frequency | 50/60 Hz | — |
| Output Voltage THD | ≤5% | — |
| Crest Factor | 3:1 | — |
| Efficiency (On-line) | — | Up to 95% |
| Efficiency (ECO Mode) | — | Up to 98% |
| Form Factor / Rack Height | 2U Rackmount | Rack/Tower (~4U) |
| Weight | — | 125.6 lb |
| Dimensions (H × W × D) | — | 6.8 × 16.9 × 25.6 in |
| Operating Temperature | — | +32 to +104 °F (0 to 40 °C) |
| Audible Noise | 65 dB | — |
| Management / Interfaces | RMCARD included (details not provided in specs) | RDU101 SNMP/Web (factory), USB, RS485, RS232, terminal block |
| Protocols | — | SNMP, Web, serial (out-of-band) |
| Surge Protection | Yes | — |
| EMI/RFI Filtering | Yes | — |
| Wiring | — | Hardwired in/out; optional PODs |
| Certifications | — | ENERGY STAR 2.0, UL1778, c-UL, RoHS2, REACH |
| Warranty (per product name) | 3 years | — |
Frequently Asked Questions
Which should you choose: the OL6KRTHD or the GXT5-6000MVRT4UXLN?
The GXT5-6000MVRT4UXLN is the stronger choice when documented efficiency, multi-protocol management out of the box, and certified compliance listings are decision criteria, while the OL6KRTHD is the stronger choice when a 2U rack footprint, a wider low-end input voltage floor, and confirmed output power-quality figures (≤5% THD, 3:1 crest factor, 0.99 input PF) are priorities. Three concrete spec deltas: (1) efficiency—Vertiv states up to 98% ECO / 95% on-line; CyberPower efficiency is not provided; (2) rack height—OL6KRTHD is specified as 2U vs. Vertiv's 4U-class chassis; (3) management interfaces—Vertiv lists six distinct interface types with SNMP/web pre-installed, while CyberPower's RMCARD is referenced but not enumerated in the provided specs. Buyers standardizing on 208 VAC data-center infrastructure with ENERGY STAR mandates will favor the Vertiv; buyers on mixed 120–240 V environments needing a compact 2U chassis with tight power-quality specs will favor the CyberPower.
Which unit is more efficient—the OL6KRTHD or the GXT5-6000MVRT4UXLN?
Based on the provided specifications, only the Vertiv GXT5-6000MVRT4UXLN publishes efficiency figures: up to 98% in Active ECO Mode and up to 95% in full on-line double-conversion mode, and it carries an ENERGY STAR 2.0 certification. The CyberPower OL6KRTHD's specifications as provided do not include an efficiency rating, so a direct numerical comparison cannot be made from the available data.
Is the OL6KRTHD or the GXT5-6000MVRT4UXLN better suited for a dense rack environment with limited U-space?
The CyberPower OL6KRTHD is described as a 2U rackmount unit in its product designation, which is a more compact form factor than the Vertiv GXT5-6000MVRT4UXLN, whose 6.8-inch height corresponds to approximately 4U of rack space. If minimizing rack unit consumption at 6 kVA is a priority, the OL6KRTHD's 2U profile is an advantage based on the provided information. Physical dimensions for the OL6KRTHD are not listed in the provided specs, so depth and weight planning would require the manufacturer datasheet.
Does either UPS come with network management included, or is it an add-on?
The Vertiv GXT5-6000MVRT4UXLN ships with a factory pre-installed Vertiv RDU101 SNMP/web card, USB, RS485, RS232, and a terminal block—all documented in the provided specifications, with SNMP and web management enabled out of the box. The CyberPower OL6KRTHD's product name references an RMCARD, indicating a remote management card is included in this configuration, but the provided specifications do not detail the supported protocols or interface types for that card. Buyers should verify CyberPower RMCARD protocol support directly with the manufacturer datasheet.
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