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Description
CyberPower OLS Rack/Tower OLS2000ERT2Ua UPS 2000VA/1800W Uninterruptible Power SupplyDescriptionSpecificationsShipping CyberPower Systems Online S (A) 2000VA 1800W Rack UPS 12V 9AHx4 8x IEC C13 USB & Serial Port & SNMP Slot (optional RMCARD205). Features: Online (Double Conversion) UPS Topology Generator Compatible Zero Transfer Time Extended Battery Module Auto detection Critical Non critical Load Outlets Phone Fax Modem DSL Network Protection Variable Speed Fans PowerPanel Management Software Rack Tower Convertible Configurations
CyberPower Systems Online S (A) 2000VA/1800W Rack UPS - 12V/9AHx4 - 8x IEC C13 - USB & Serial Port & SNMP Slot (optional RMCARD205).
Features:
- Online (Double Conversion) UPS Topology
- Generator Compatible
- Zero Transfer Time
- Extended Battery Module Auto-detection
- Critical/Non-critical Load Outlets
- Phone/Fax/Modem/DSL/Network Protection
- Variable Speed Fans
- PowerPanel Management Software
- Rack/Tower Convertible Configurations
- ECO Mode
- Overload Protection
- Smart Battery Management (SBM)
- Surge and Spike Protection
- EMI and RFI Filtration
- Color LCD Panel
- Emergency Power Off (EPO) Port
- SNMP/HTTP Remote Management Capability (Optional)
- Phase: Single Phase
- Form Factor: Rackmount, Tower
- UPS Topology: Online Double Conversion
- Energy Saving Technology: Online ECO Mode Efficiency > 95%
- Generator Compatibility: Yes
- Nominal Input Voltage ( Vac ): 230 ± 10%
- Input Voltage Range ( Vac ): 190 - 300
- Adjustable Voltage Range ( Vac ): 0-30% Load for 80 - 300 Vac | 0-50% Load for 120 - 300 Vac | 0-75% Load for 160 - 300 Vac | 0-90% Load for 190 - 300 Vac | 0-100% Load for 200 - 300 Vac
- Input Frequency ( Hz ): 50 ± 10 | 60 ± 10
- Input Frequency Detection: Auto-sensing
- Rated Input Current ( A ): 9
- Input Power Factor: 0.99
- Input Connector Type: IEC C14
- Power Cord Length (m.): 1.5
- Output Capacity (Watts): 1800
- On Battery Waveform: Pure Sine Wave
- On Battery Voltage(s) ( Vac ): 208 ± 1% | 220 ± 1% | 230 ± 1% | 240 ± 1%
- Output Voltage Setting: Configurable
- On Battery Frequency ( Hz ): 50 ± 0.5% | 60 ± 0.5%
- Output Frequency Setting: Configurable
- Power Factor: 0.9
- ECO Mode Voltage Tolerance: ± 15 %
- Overload Protection: Internal Current Limiting, Circuit Breaker, Fuse
- Overload Protection (Line Mode): 110-120% Load for 1 min, >120% Load Immediately
- Overload Protection (Battery Mode): 110-120% Load for 10 sec, >120% Load Immediately
- Overload Protection (Bypass Mode): >130% Load Immediately
- Crest Factor: 3 : 1
- Harmonic Distortion (Linear Load): THD 3%
- Harmonic Distortion (Non-linear Load): THD 5%
- Internal Bypass: Automatic Bypass, Manual Bypass
- Outlet(s) - Total: 8
- Outlet Type: IEC C13 x 8
- Outlet(s) - Battery & Surge Protected: 8
- Outlet(s) - Critical Load (CL): 4
- Outlet(s) - Non-Critical Load (NCL): 4
- Typical Transfer Time ( ms ): 0
- Runtime at Half Load ( min ): 11.9
- Runtime at Full Load ( min ): 4
- Typical Recharge Time ( Hours ): 4
- Maximum Charging Current ( A ): 1.5
- Start On Battery: Yes
- Smart Battery Management (SBM): Yes
- User-replaceable: Yes - Qualified Personnel Only
- Battery Type: Sealed Lead-acid
- Battery Cartridge: RBP0157
- RBP Quantity ( pcs ): 1
- Battery Quantity (Each RBP) ( pcs ): 4
- Battery Voltage (Each RBP) ( V ): 48
- Compatible Extended Battery Module (EBM): BPSE48V40ART2U
- Extended Battery Module Auto-detection: Yes
- Max. EBM Quantity ( pcs ): 3
- Surge Suppression ( Joules ): 363
- EMI/RFI Filtration: Yes
- Phone/Network Protection RJ11/RJ45 (Combo): 1-in, 1-out
- LCD Information Display: Operation Type, Power Status, Battery Status, Load Status, Fault & Warning, Other Information, Event & Log
- LCD Setting & Control: Mode Setting, Alarm Setting, Input & Output, Battery Setting
- HID Compliant USB Port(s): 1
- Dry Contact (with Relay): Yes
- Emergency Power Off (EPO) Port: Yes
- Audible Alarms: Battery Mode, Low Battery, Overload, Overcharge, Overheat, UPS Fault, Replace Battery
- Management Cable ( pcs ): Power Cord x2, USB Cable x1
- Power Management Software: PowerPanel Business (Recommended)
- SNMP/HTTP Remote Monitoring: Yes - with optional RMCARD205
- Enclosure Construction: Metal
- Rackmount Rail: Yes
- Rackmount Ears: Yes
- Dimensions: 438 x 88 x 430
- Weight: 19.2kg
- Certifications: CE, RCM
- SKU OLS2000ERT2Ua
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Perfect chair!
Size: 934-Z, Color: Blue, Size: 934-Z, Color: Blue
I have an adjustable-height desk (also purchased from Amazon) and needed a drafting chair for those times when my body gets tired of standing. This chair fits the bill and then some! I put it together myself; it took me about an hour, but would take me about half that next time, since now I know what to do (and what NOT to do!). All the parts were there; there are even spare parts (see photo). All the holes were drilled in exactly the right places, too, which isn't always the case when I buy things from Amazon (my standing desk is a great example). The chair fits me; I'm short (5'3.5"), and often the seats of furniture are too deep for me to rest my feet flat on the floor. The depth of the seat on this chair is just a little over 18 inches, and with the adjustable footrest ring, it's perfect. I don't think a tall or heavy person would fit in it, to be honest. But it's perfect for those of us who are vertically challenged. I love that it glides easily on my hardwood floors and that it turns 360 degrees. The chair comes in numerous luscious colors, so take your pick! It is very sturdy, has good lumbar support, and the seat and seat back are very comfortable. And the arms flip up, which was an absolute must when I was shopping for this chair. I got it on sale, too -- $109.00 -- and I'm delighted with this purchase.
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Excellent adjustable drafting chair
Size: 934-Z, Color: Blue
Excellent chair design, extremely comfortable and exceptionally easy instructions to follow making for simple assembly. Love the amply wide cushioned seat and ergonomic backrest. The height adjustment feature works perfectly as well as positioning of the foot ring . Having the ability to raise the arms is also a big plus! I highly recommend this product for attractive appearance, comfort features, functionality and operation. Really nice chair!
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Reviewed in the United States on April 13, 2026
★★★★★ 4
Comfortable, stylish, and perfect for long work hours 💗✨
Size: 934-Z, Color: Pink
I bought this chair because I spend a lot of time working and needed something comfortable but also stylish, and I absolutely love it.
Since I started using it, I feel much better support in my back thanks to the lumbar support. It makes a big difference, especially during long work hours. The adjustable footrest is also a feature I didn’t know I needed, but now I use it all the time.
The flip-up armrests are very convenient because I can adjust them depending on what I’m doing or move them out of the way when needed.
The pink color is beautiful and adds a soft, elegant touch to my workspace. It looks great in a modern home office.
It feels sturdy, well-made, and very stable. Overall, it’s a great purchase that improved both my comfort and the look of my workspace.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
All-around thumbs up!
Size: 934W-Z, Color: Black
So far, so awesome. Easy to assemble, comfortable, arrived quickly and is exactly what I was looking for. I have a tall work bench in my new studio so I needed a chair that we could allow me to sit higher than a regular office chair and allow me to get off my feet after standing on the concrete floor. Plus its a nice looking chair that I am sure will last a long time. I love the flip-up arms and the lumbar support. This is just right!
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Perfect Balance of Comfort, Support, and Style!
Size: 934-Z, Color: Black, Size: 934-Z, Color: Black
I’ve been using this chair for a few weeks now, and I’m genuinely impressed with how much of a difference it’s made in my workspace. The mesh back is one of my favorite features—it offers excellent breathability and prevents that sticky, overheated feeling you sometimes get with solid-back chairs, even after sitting for hours. The seat cushion is firm enough to give proper support but still has enough give to keep me comfortable through long workdays. It feels like the perfect middle ground between soft and supportive.
The adjustable foot ring has been a complete game changer for me. I use a taller desk setup, and having somewhere to rest my feet makes a huge difference in posture and overall comfort. Whether I’m sitting upright for focused work or leaning back to read, it’s always at the right height.
The flip-up armrests are another smart design choice. When I’m typing, I like to have them down for support, but when I’m done, I can flip them up and push the chair neatly under my desk—saving space and keeping things tidy. The casters roll smoothly on both hardwood and rugs, so I can move around easily without scraping the floor or getting stuck. The overall build quality feels solid and sturdy, with no wobbles or creaks.
Assembly was surprisingly quick—everything was clearly labeled, the parts felt durable, and it only took me about 20 minutes from opening the box to sitting in the chair. The sleek, modern look is another big plus—it blends in perfectly with my home office décor without feeling bulky or taking up too much visual space.
If you’re looking for a chair that combines comfort, ergonomic support, durability, and style, I can’t recommend this one enough. It’s equally great for work, studying, or just relaxing at your desk, and it’s definitely been worth every penny.
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Reviewed in the United States on August 12, 2025