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Description
Antec CSK850 PRO 850W Semi-Modular ATX 3.1 Power Supply, PCIe 5.1 Ready with 12V 2x6 Connector, 80 Plus Bronze Certified, Quiet 120mm Fan, 5-Year WarrantyThe Antec CSK850 PRO is an 850 W semi modular power supply designed for modern gaming and high performance PCs. Compliant with the ATX 3. 1 standard and PCIe 5. 1 ready, it supports the latest graphics cards through its native 12V 2x6 (12VHPWR) connector. Featuring 80 Plus Bronze efficiency and advanced CircuitShield protection, this PSU ensures reliable, efficient, and safe power delivery. Its compact design, quiet 120 mm fan with intelligent thermal
The Antec CSK850 PRO is an 850 W semi-modular power supply designed for modern gaming and high-performance PCs. Compliant with the ATX 3.1 standard and PCIe 5.1 ready, it supports the latest graphics cards through its native 12V 2x6 (12VHPWR) connector. Featuring 80 Plus Bronze efficiency and advanced CircuitShield™ protection, this PSU ensures reliable, efficient, and safe power delivery. Its compact design, quiet 120 mm fan with intelligent thermal control, and semi-modular cables make installation easy and improve system airflow. Backed by a 5-year warranty, it is a future-proof choice for demanding PC builds.Full Specifications
Model:
CSK850 PRO
MPN:
0-761345-20071-4
Form Factor:
ATX 12V 3.1 semi-modular
Wattage:
850 W continuous
Efficiency:
80 Plus Bronze (up to ~90%)
ATX Standard:
ATX 3.1
PCIe Support:
PCIe 5.1 native 12V 2x6 GPU connector
Protection Features (CircuitShield™):
OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO
Cooling:
120 mm silent fan with thermal manager fan speed control
PFC:
Active PFC
Power Good Signal:
100–150 ms
Input Voltage:
200–240 V AC, 12 A max, 50–60 Hz
Dimensions (L x W x H):
140 x 150 x 86 mm
Net Weight:
Approximately 1.95 kg
Connectors:
1 x 24-pin ATX main
1 x 16-pin (12+4) PCIe 5.1 (12VHPWR, up to 600 W)
2 x 8-pin (4+4) CPU EPS
4 x 8-pin (6+2) PCIe
6 x SATA
3 x Molex
Operating Temperature:
0–40 °C
Certifications:
TUV, CB, RCM, CE, BIS, UKCA, KC
Warranty:
5 years
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
4.2 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
great product
Reload type: One Time Reload
so easy, thanks amazon
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Reviewed in the United States on June 9, 2026
★★★★★ 4
Great for keeping bank statements clean but random security delays are frustrating
Reload type: One Time Reload
I use the balance reload tool to manage my monthly budget and easily hit credit card sign-up bonuses. It keeps my bank statements totally clean by grouping dozens of tiny e-book and movie rental charges into one single transaction. Most of the time the whole process works flawlessly and the money shows up in my account within five minutes. It is honestly the easiest way to put a hard limit on my family's everyday online shopping.
You just need to watch out for a few annoying system quirks when you load larger amounts of money. Even though it usually works instantly the automated security filter sometimes flags big reloads and freezes the transaction for hours. This random delay is incredibly frustrating if you are trying to add cash fast to catch a lightning deal before it expires. You also have to remember that this balance is strictly non-refundable and cannot be used to buy other gift cards.
Overall this is still a great method for organizing online spending and maximizing your cash-back credit card rewards. It totally fixed how I track household purchases but you definitely have to tolerate the occasional processing delays. My best advice is to load your account a day or two before you actually need to buy a big-ticket item. It works perfectly as a budgeting tool as long as you know the rules and plan for the random security hold.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Fast
Reload type: One Time Reload
Super fast easy to use and reload
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Reviewed in the United States on June 11, 2026
★★★★★ 5
Fantastic for gaming and productivity, but missing USB-C rechargeability
Color: Classic Black, Color: Classic Black
I recently purchased the Razer Orochi V2, and overall, it is an amazing mouse. The build quality is absolutely fantastic, and it feels premium. It fits perfectly in my palm, and the materials and clicks have a very pleasant tactile feel. I use it daily for both gaming and work, and it performs flawlessly in both scenarios. Compared to my Razer Pro Click, the Orochi V2 actually fits my hand much better. In fact, I now only use the Pro Click as a backup for when the Orochi's battery suddenly dies!
There is really only one downside for me: it runs on disposable batteries rather than having a built-in rechargeable one. On the plus side, it only needs a single battery to operate, and I love the clever design that allows you to use either a standard AA or a smaller AAA battery depending on your weight preference.
However, I would really love to see a future version of this exact mouse with a built-in battery and a standard USB Type-C charging port. If you don't mind swapping batteries occasionally, this is a near-perfect mouse. Highly recommended!
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Reviewed in the United States on April 6, 2026
★★★★★ 5
Amazing mouse even for big hands.
Color: White
So I have big hands and what any big hand gamer understands is that you either have to get a big ol heavy G502 size mouse or use a certain grip to hold all these mice for smaller handed people. I previously owned a Model O, G pro, and Model O wireless.
Having big hands my biggest peeve with all the other mice is that they’re ambidextrous mice so they are even harder to hold with fingertip/claw grips because the smooth, near flat, symmetrical sides. I only really make contact with the sides by pinching my fingers with them. I never make contact with the butt or base of the mouse with my grip. There’s where the Orochi changes things
The Orochi somehow is a smaller mouse than all of the above but fills out my hand and grip SO much better. The sides actually have slight grooves so I don’t slip off the sides of my mouse and the shorter but bigger hump in the middle makes me for once actually feel the mouse in my palm if I want. Overall the feel is amazing.
Battery life varies of course but I can barely tell there’s a battery in the thing even when flicking and the weight and balance of it feel so good.
Mobile gaming is the main reason I got this mouse. I like that the dongle stores inside the mouse, uses batteries so I don’t have to worry about keeping it charged or bringing around extra cables to charge it, and the Bluetooth is good for casual gaming but doesn’t do great with big flicks so the 2.4ghz connection is required for esports games.
Overall a great mouse and really awesome to game with and a little plus to it is that the shell comes off the back so satisfying, it’s hard to not fidget with it by taking it on and off haha. Well worth the money and I’d expect they’ll make a rechargeable one with all the success this mouse has accrued so far so if the swappable batteries don’t tickle your pickle, I’d just buy a sub $20 rechargeable battery station or just wait for a new rechargeable Orochi to come out.
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Reviewed in the United States on May 20, 2021