The Antec CSK 850W Pro PCle5.1 Gen5 80 Plus Bronze Semi-Modular Power Supply offers a powerful blend of efficiency, performance, and reliability, making it an ideal choice for modern gaming and professional PC builds. Certified for ATX 3.1 and PCIe 5.1 standards, this PSU is designed to meet the rigorous demands of cutting-edge hardware, including seamless compatibility with NVIDIA® GeForce RTX™ 40 Series GPUs via its 12V-2×6 PCIe 5.1 GPU cable. With its 850W of Continuous Power and 80 PLUS® Bronze certification, the CSK Pro delivers up to 90% energy efficiency, ensuring a cooler, quieter, and more cost-effective system.

Engineered for durability and safety, the CSK Pro features Antec’s CircuitShield™ suite of industrial-grade protections, including safeguards like OCP, OVP, UVP, SCP, OPP, OTP, SIP, and NLO, providing robust defense against potential electrical issues. Its 120mm silent fan, paired with the Thermal Manager low voltage fan control system, optimizes airflow and temperature management, allowing for quiet and stable operation even under heavy loads. The compact design of this PSU makes it compatible with a wide range of PC cases, offering versatility for diverse build configurations.

The semi-modular cable system of the CSK Pro enables a streamlined setup, reducing cable clutter and enhancing internal airflow for improved system cooling. This thoughtful design not only ensures better organization but also contributes to a cleaner overall aesthetic. Backed by Antec’s 5-year warranty, the CSK 850W Pro delivers exceptional value and reliability, making it a top-tier choice for users seeking high-quality power delivery for their advanced systems.

Suitable Models:
Gateway
NS411, NS511, NV49C, NV49C13C, NV49xx, NV50A, NV51B, NV53, NV53A, NV53A11u, NV55C, NV59C, NV73A, NV79, NV79C, NS41I, NS51I
Acer Aspire
4250, 4251, 4252, 4253, 4253G, 4333, 4339, 4349, 4352, 4551, 4551G, 4551G-P322G32Mn, 4552, 4552-5078, 4552G, 4560, 4560G, 4625, 4733Z, 4738, 4738G, 4738Z, 4738ZG, 4739, 4739Z, 4741, 4741G, 4741G-332G32Mnsk, 4741G-332G50Mn, 4741G-372G50Mnkk02, 4741G-372G50Mnkk06, 4741G-432G50Mnkk01, 4741G-5452G50Mnkk04, 4741G-5462G50Mnkk05, 4741G-5464G50Mn, 4741Z, 4741ZG, 4741ZG-P602G50Mnkkc, 4741ZG-P622G50Mnkk03, 4743, 4743G, 4743Z, 4743ZG, 4750, 4750G, 4750Z, 4750ZG, 4752, 4752G, 4752Z, 4752ZG, 4755, 4755G, 4755ZG, 4771, 4771G, 4771Z, 5250, 5251, 5251-1005, 5251-1549, 5252, 5253, 5253G, 5333, 5336, 5349, 5350, 5551, 5551-2013, 5551-2036, 5551-2805, 5551-4200, 5551-4937, 5551-P323G32Mnsk, 5551G, 5551G -4280, 5551G -4591, 5551G-P324G32Mn, 5552, 5552G, 5560, 5560 V3, 5560G, 5733, 5733Z, 5736, 5736G, 5736Z, 5736ZG, 5741, 5741-332G25Mn, 5741-333G32Mn, 5741-334G32Mn, 5741-334G50Mn, 5741-3404, 5741-3541, 5741-433G32Mn, 5741-434G50Mn, 5741-5698, 5741-5763, 5741G, 5741G-332G50Mn, 5741G-333G32Bn, 5741G-334G50Mn, 5741G-334G64Mn, 5741G-434G64Bn, 5741G-5452G50Mnck, 5741G-5452G50Mnkk, 5741G-5452G50Mnsk, 5741Z, 5741ZG, 5742, 5742G, 5742Z, 5742ZG, 5750, 5750G, 5750G-2312G50, 5750TG, 5750Z, 5750ZG, 5755, 5755G, 5755Z, 5755ZG, 7251, 7551, 7551-2755, 7551-3068, 7551-3416, 7551-3634, 7551-5358, 7551G, 7551G-5407, 7551G-5821, 7551G-6477, 7551Z, 7551ZG, 7552G, 7552G-5107, 7552G-5488, 7552G-6061, 7560, 7560G, 7741, 7741-333G25Mn, 7741-5137, 7741-7870, 7741G, 7741G-333G25Bn, 7741G-333G32Mn, 7741G-334G50Mn, 7741G-3647, 7741G-374G64Mn, 7741G-434G50Mn, 7741G-464G64Mn, 7741G-7017, 7741Z, 7741Z-4475, 7741Z-4592, 7741Z-4633, 7741Z-4643, 7741Z-4815, 7741Z-5731, 7741Z-P614G50Mn, 7741ZG, 7741ZG-P604G50Mn, 7750, 7750G, 7750Z, 7750ZG, AS4250-C52G25Mikk, AS5250-C52G25Mikk, AS5250-C53G25Mikk, AS5250-E352G32Mikk, AS5253-C52G32Mnkk, AS5253-C54G50Mnkk, AS5253-E353G32Mnrr, AS5253-E354G32Mnkk, AS5741, AS5741-H32C/S, AS5741-H32C/SF, AS5741-H54D/LS, AS5741-H54D/S, AS5741-H54D/SF, AS5741-N32C/KF, AS5741-N32D/K, AS5741-N54E/K, AS5741-N54E/KF, E1, E1-421, E1-431, E1-471, E1-471G-32352G50Mnks, E1-521, E1-531, E1-531-2644, E1-531-2697, E1-531-4444, E1-531-4694, E1-531-B824G32Mnks, E1-531-B8304G50Mnks, E1-531-B9504G32Mnks, E1-531-B9604G50Mnks, E1-571, E1-571-32324G50Mnks, E1-571-33114G50Mnks, E1-571-53214G50Mnks, E1-571-53216G50Mnks, E1-571-6442, E1-571-6454, E1-571-6481, E1-571-6490, E1-571-6492, E1-571-6634, E1-571-6650, V3, V3-471, V3-471G, V3-471G-32352G50Ma, V3-551, V3-551-84504G50Makk, V3-551-8469, V3-551-8664, V3-551-8809, V3-551G, V3-551G-84504G50Makk, V3-551G-8454, V3-571, V3-571-53216G75Makk, V3-571-6643, V3-571-6698, V3-571-6800, V3-571-73634G50Makk, V3-571-73636G75Makk, V3-571-9401, V3-571-9831, V3-571-9890, V3-571G, V3-571G-52454G75Mai, V3-571G-53214G50Makk, V3-571G-6407, V3-571G-6602, V3-571G-6641, V3-571G-73636G50Makk, V3-571G-9435, V3-571G-9686, V3-731-4473, V3-731-4695, V3-731-B9606G50Makk, V3-771, V3-771G
TravelMate
4370, 4740, 4740-352G32Mn, 4740-432G50Mna, 4740-5261, 4740-5452G50Mnssb, 4740-5462G50Mnss02, 4740-7552, 4740-7787, 4740G, 4740Z, 4750, 5335, 5335G, 5335Z, 5340, 5340G, 5542, 5542G, 5735Z, 5740, 5740-332G16Mn, 5740-332G25Mn, 5740-333G25Mn, 5740-333G32Mn, 5740-352G25Mn, 5740-372G25Mnss, 5740-434G32Mn, 5740-5092, 5740-524G32Mn, 5740-5896, 5740-5952, 5740-6070, 5740-6291, 5740-6529, 5740G, 5740G-334G32Mn, 5740G-434G32Mn, 5740G-524G50Mn, 5740G-528G64Mn, 5740G-5452G32Mnss, 5740G-6765, 5740Z-P602G25Mn, 5740Z-P604G32Mnss, 5742, 5742-372G25Mn, 5742-373G32Mn, 5742-463G32Mn, 5742-5562G50Mnss01, 5742-7013, 5742-7159, 5742-7399, 5742-7906, 5742-7908, 5742G, 5742Z, 5742Z-4693, 5742ZG, 5744, 5744G, 5744Z, 6495, 6495G, 6495T, 6495TG, 6595, 6595G, 6595T, 6595TG, 7340, 7740, 7740-352G32Mn, 7740-353G25Mnss, 7740-434G32Mnss, 7740G, 7740G-434G50Mnss, 7740Z, 7740Z-P604G32Mnss, 7740ZG, 7740ZG-P604G50Mnss, 7750G, 7750Z, 8472, 8472 HF, 8472G, 8472G HF, 8472T, 8472T HF, 8472TG, 8472TG HF, 8473, 8473G, 8473T, 8473TG, 8572, 8572G, 8572T, 8572T HF, 8572TG, 8573, 8573G, 8573T, 8573TG, TM5740, TM5740-X322, TM5740-X322D, TM5740-X322DF, TM5740-X322DHBF, TM5740-X322DOF, TM5740-X322DPF, TM5740-X322F, TM5740-X322HBF, TM5740-X322OF, TM5740-X322PF, TM5740-X522, TM5740-X522D, TM5740-X522DF, TM5740-X522DHBF, TM5740-X522DOF, TM5740-X522DPF, TM5740-X522F, TM5740-X522HBF, TM5740-X522OF, TM5740-X522PF, TM5742, TM5742-X732, TM5742-X732D, TM5742-X732DF, TM5742-X732DHBF, TM5742-X732DOF, TM5742-X732DPF, TM5742-X732F, TM5742-X732HBF, TM5742-X732OF, TM5742-X732PF, TM5742-X742, TM5742-X742D, TM5742-X742DF, TM5742-X742DHBF, TM5742-X742DOF, TM5742-X742DPF, TM5742-X742F, TM5742-X742HBF, TM5742-X742OF, TM5742-X742PF, 5735, 5735ZG, 5740Z, 5760, 5760G, 7750, P243, P243-M, P253, TMP253, P273-MG, P453, P453-M, P453-MG, P653, P653-V
eMachines
E732Z, E730, E732Z, E642, D440, E440
Packard Bell
P5WS0, P5WE0, PEW91
EasyNote
TK87, TE11HC, TV43H

Compatible part numbers:
31CR19/65-2, 31CR19/652, 31CR19/66-2, 31CR19/652, AK.006BT.075, AK.006BT.080, AS10D31, AS10D3E, AS10D5E, AS10D41, AS10D51, AS10D61, AS10D71, AS10D73, AS10D75, AS10D81, BT.00603.111, BT.00603.117, BT.00603.124, BT.00604.049, BT.00605.062, BT.00605.065, BT.00606.008, BT.00607.125, BT.00607.126, BT.00607.127, BT.00607.130, LC.BTP00.123, BT.00603.129, 934T2081F, AS10G3E