Katalozi Savjeti Lista želja 0
Filtriraj rezultate

SilverStone Kolink napajanja

145 proizvoda
145 proizvoda
SilverStone SST-ET550-B v1.2 ATX Netzteil 80 PLUS Bronze - 550 Watt SST-ET550-B v1.2

SilverStone SST-ET550-B v1.2 ATX Netzteil 80 PLUS Bronze - 550 Watt SST-ET550-B v1.2

od 56,00 €
2 ponude
Stavi u listu želja
SilverStone SST-ET650-B v1.4 Strider Essential Series 80 PLUS Bronze - 650 Watt SST-ET650-B v 1.4

SilverStone SST-ET650-B v1.4 Strider Essential Series 80 PLUS Bronze - 650 Watt SST-ET650-B v 1.4

od 64,00 €
3 ponude
Stavi u listu želja
Kolink Continuum 80 PLUS Platinum Netzteil, modular - 1050 Watt KL-C1050PL-B

Kolink Continuum 80 PLUS Platinum Netzteil, modular - 1050 Watt KL-C1050PL-B

od 223,20 €
2 ponude
Stavi u listu želja
SilverStone napajanje Strider Essential ST60F-, 600 W, 120mm, aktivni PFC

SilverStone napajanje Strider Essential ST60F-, 600 W, 120mm, aktivni PFC

od 52,86 €
8 ponuda
Stavi u listu želja
SilverStone Strider Essential Series, 550W, 80+ Bronze, ventilator 12cm, PSU za stolno računalo

SilverStone Strider Essential Series, 550W, 80+ Bronze, ventilator 12cm, PSU za stolno računalo

od 54,88 €
3 ponude
Stavi u listu želja
SilverStone SST-FX600-PT FX600 Platinum Netzteil - 600 Watt SST-FX600-PT

SilverStone SST-FX600-PT FX600 Platinum Netzteil - 600 Watt SST-FX600-PT

205,20 €
1 ponuda
Stavi u listu želja
SilverStone SST-TX500-G TFX Netzteil, 80 PLUS Gold - 500 Watt SST-TX500-G

SilverStone SST-TX500-G TFX Netzteil, 80 PLUS Gold - 500 Watt SST-TX500-G

137,70 €
1 ponuda
Stavi u listu želja
KOLINK COREADEPT-EK-WHT Core Adept produžni set bijela

KOLINK COREADEPT-EK-WHT Core Adept produžni set bijela

od 41,49 €
2 ponude
Stavi u listu želja
Napajanje 500W, KOLINK Enclave, ATX, 120mm vent. 80+ Gold, modularno

Napajanje 500W, KOLINK Enclave, ATX, 120mm vent. 80+ Gold, modularno

od 65,00 €
4 ponude
Stavi u listu želja
SilverStone napajanje 550 W, 120mm, aktivni PFC

SilverStone napajanje 550 W, 120mm, aktivni PFC

od 55,99 €
4 ponude
Stavi u listu želja
SilverStone Strider Essential Series, 650W 80 Plus Bronze ATX PC Power Supply, Low Noise 120mm; Brand: SILVERSTONE; Model: SST-ET650-B; PartNo: SST-ET650-B; SST-ET650-B SilverStone Strider Essential Series, 650W 80 Plus Bronze ATX PC Power...

SilverStone Strider Essential Series, 650W 80 Plus Bronze ATX PC Power Supply, Low Noise 120mm; Brand: SILVERSTONE; Model: SST-ET650-B; PartNo: SST-ET650-B; SST-ET650-B SilverStone Strider Essential Series, 650W 80 Plus Bronze ATX PC Power...

71,50 €
1 ponuda
Stavi u listu želja
SilverStone DA750R Gold, 750W 80 PLUS Gold ATX 3.0 & PCIe 5.0 Fully Modular PSU, Gen5 12V-2x6 PCIe connector, Silent running 120mm fan with advanced semi-fanless operation, Retail, Black, SST-DA750R-GMA

SilverStone DA750R Gold, 750W 80 PLUS Gold ATX 3.0 & PCIe 5.0 Fully Modular PSU, Gen5 12V-2x6 PCIe connector, Silent running 120mm fan with advanced semi-fanless operation, Retail, Black, SST-DA750R-GMA

od 109,23 €
7 ponuda
Stavi u listu želja
SilverStone napajanje 650 W, 120mm, aktivni PFC

SilverStone napajanje 650 W, 120mm, aktivni PFC

od 61,09 €
2 ponude
Stavi u listu želja
SilverStone napajanje 850 W, 120mm, aktivni PFC

SilverStone napajanje 850 W, 120mm, aktivni PFC

od 106,19 €
14 ponuda
Stavi u listu želja
SilverStone Strider Essential Series, 650W 80 Plus Bronze ATX PC Power Supply, Low Noise 120mm

SilverStone Strider Essential Series, 650W 80 Plus Bronze ATX PC Power Supply, Low Noise 120mm

od 62,69 €
4 ponude
Stavi u listu želja
SilverStone Strider Essential Series, 650W 80 Plus Bronze ATX PC Power Supply, Low Noise 120mm SST-ET650-B SST-ET650-B

SilverStone Strider Essential Series, 650W 80 Plus Bronze ATX PC Power Supply, Low Noise 120mm SST-ET650-B SST-ET650-B

67,50 €
1 ponuda
Stavi u listu želja
SilverStone Strider Essential Series, 650W 80+ Bronze, ventilator, 12cm, PSU za stolno računalo, oznaka modela SST-ET650-B

SilverStone Strider Essential Series, 650W 80+ Bronze, ventilator, 12cm, PSU za stolno računalo, oznaka modela SST-ET650-B

60,90 €
1 ponuda
Stavi u listu želja
SST-DA750R-GMA - SilverStone DA750R Gold, 750W 80 PLUS Gold ATX 3.0 PCIe 5.0 Fully Modular PSU, Gen5 12V-2x6 PCIe connector, Silent running 120mm fan with advanced semi-fanless operation, Retail, Black - - Power Device Type Power Supply Power...

SST-DA750R-GMA - SilverStone DA750R Gold, 750W 80 PLUS Gold ATX 3.0 PCIe 5.0 Fully Modular PSU, Gen5 12V-2x6 PCIe connector, Silent running 120mm fan with advanced semi-fanless operation, Retail, Black - - Power Device Type Power Supply Power...

116,50 €
1 ponuda
Stavi u listu želja
SST-DA850-G - Napajanje SilverStone Decathlon Series, 850W 80 Plus Gold ATX PC Power Supply, Low Noise 120mm, 100 modular - - Power Device Type Power Supply Power Device Location Plug-in-module Form Factor ATX Input Voltage AC 90-264 V Input...

SST-DA850-G - Napajanje SilverStone Decathlon Series, 850W 80 Plus Gold ATX PC Power Supply, Low Noise 120mm, 100 modular - - Power Device Type Power Supply Power Device Location Plug-in-module Form Factor ATX Input Voltage AC 90-264 V Input...

115,71 €
1 ponuda
Stavi u listu želja
SST-ET500-ARGB - Napajanje SilverStone ET500-ARGB, 500W 80 PLUS Bronze ATX power supply, 120mm ARGB fan, 12V rail, PCI-E 8 pin and 6 pin, ARGB, ATX, Retail - -

SST-ET500-ARGB - Napajanje SilverStone ET500-ARGB, 500W 80 PLUS Bronze ATX power supply, 120mm ARGB fan, 12V rail, PCI-E 8 pin and 6 pin, ARGB, ATX, Retail - -

61,41 €
1 ponuda
Stavi u listu želja
SST-ET550-B - Napajanje SilverStone Strider Essential Series, 550W 80 Plus Bronze ATX PC Power Supply, Low Noise 120mm - - Power Device Type Power Supply Power Device Location Plug-in-module Input Voltage AC 90-264 V Input Frequency 47/63 Hz...

SST-ET550-B - Napajanje SilverStone Strider Essential Series, 550W 80 Plus Bronze ATX PC Power Supply, Low Noise 120mm - - Power Device Type Power Supply Power Device Location Plug-in-module Input Voltage AC 90-264 V Input Frequency 47/63 Hz...

59,95 €
1 ponuda
Stavi u listu želja
SST-ET650-B - Napajanje SilverStone Strider Essential Series, 650W 80 Plus Bronze ATX PC Power Supply, Low Noise 120mm - - Power Device Type Power Supply Power Device Location Internal Form Factor ATX Input Voltage AC 100-254 V Input Frequency...

SST-ET650-B - Napajanje SilverStone Strider Essential Series, 650W 80 Plus Bronze ATX PC Power Supply, Low Noise 120mm - - Power Device Type Power Supply Power Device Location Internal Form Factor ATX Input Voltage AC 100-254 V Input Frequency...

66,53 €
1 ponuda
Stavi u listu želja
Jedinica napajanja Silverstone 1200W HELA 1200R Platinum, ATX, 135mm, 80 plus Platinum, 36mj (SST-HA1200R-PM)

Jedinica napajanja Silverstone 1200W HELA 1200R Platinum, ATX, 135mm, 80 plus Platinum, 36mj (SST-HA1200R-PM)

386,68 €
1 ponuda
Stavi u listu želja
Kolink Classic Power 80+ Bronze 600W, KL-600v2

Kolink Classic Power 80+ Bronze 600W, KL-600v2

od 49,15 €
3 ponude
Stavi u listu želja
KOLINK Regulator 850W PCIe5

KOLINK Regulator 850W PCIe5

od 117,78 €
3 ponude
Stavi u listu želja
Napajanje Kolink 700W Core RGB, 80 PLUS, KL-C700RGB, bez naponskog kabla

Napajanje Kolink 700W Core RGB, 80 PLUS, KL-C700RGB, bez naponskog kabla

od 50,09 €
2 ponude
Stavi u listu želja
SilverStone napajanje 500 W, 120mm, aktivni PFC

SilverStone napajanje 500 W, 120mm, aktivni PFC

52,83 €
1 ponuda
Stavi u listu želja
KOLINK Core 700W

KOLINK Core 700W

od 48,35 €
3 ponude
Stavi u listu želja
Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 2 - Brilliant White-COREPRO-EK-12VT2-WHT

Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 2 - Brilliant White-COREPRO-EK-12VT2-WHT

od 71,10 €
3 ponude
Stavi u listu želja
KOLINK KOLINK Modular Power 500Mv2 500W

KOLINK KOLINK Modular Power 500Mv2 500W

od 49,00 €
3 ponude
Stavi u listu želja
SilverStone napajanje 120 W, 135mm, aktivni PFC

SilverStone napajanje 120 W, 135mm, aktivni PFC

410,00 €
1 ponuda
Stavi u listu želja
SilverStone napajanje ST700P, 700 W, 120mm, aktivni PFC

SilverStone napajanje ST700P, 700 W, 120mm, aktivni PFC

od 61,58 €
7 ponuda
Stavi u listu želja
SilverStone napajanje Strider Plus ST700P, 700 W, 120mm

SilverStone napajanje Strider Plus ST700P, 700 W, 120mm

od 65,10 €
3 ponude
Stavi u listu želja
SilverStone SST-ET500-ARGB Netzteil 80 PLUS Bronze - 500 Watt SST-ET500-ARGB

SilverStone SST-ET500-ARGB Netzteil 80 PLUS Bronze - 500 Watt SST-ET500-ARGB

od 56,23 €
5 ponuda
Stavi u listu želja
Kolink Core Adept Braided Cable Extension Kit - Jet Black/Titan Purple COREADEPT-EK-BTP

Kolink Core Adept Braided Cable Extension Kit - Jet Black/Titan Purple COREADEPT-EK-BTP

od 39,30 €
2 ponude
Stavi u listu želja
SilverStone SST-GM1000-2UG V2 redundantes 2HE-Netzteil - 1000 Watt SST-GM1000-2UG-V2

SilverStone SST-GM1000-2UG V2 redundantes 2HE-Netzteil - 1000 Watt SST-GM1000-2UG-V2

996,30 €
1 ponuda
Stavi u listu želja
Silverstone SST-EX1200R-PL Platinum Netzteil-SST-EX1200R-PL

Silverstone SST-EX1200R-PL Platinum Netzteil-SST-EX1200R-PL

390,60 €
1 ponuda
Stavi u listu želja
Kolink Core Adept Braided Cable Extension Kit - Crno/Bijeli CBKL1286

Kolink Core Adept Braided Cable Extension Kit - Crno/Bijeli CBKL1286

49,00 €
1 ponuda
Stavi u listu želja
KOLINK Regulator 1000W PCIe5

KOLINK Regulator 1000W PCIe5

od 147,90 €
3 ponude
Stavi u listu želja
SilverStone napajanje Strider ST1000-, 1000 W, aktivni PFC

SilverStone napajanje Strider ST1000-, 1000 W, aktivni PFC

od 277,20 €
2 ponude
Stavi u listu želja
Kolink Core Standard Braided Cable Extension Kit - Jet Black/Racing Red CORESTANDARD-EK-BRD

Kolink Core Standard Braided Cable Extension Kit - Jet Black/Racing Red CORESTANDARD-EK-BRD

od 21,98 €
5 ponuda
Stavi u listu želja
SilverStone SX1000R-PL Platinum SFX-L Netzteil, Cybenetics Platinum, vollmodular, ATX 3.0 - 1000 Wat SST-SX1000R-PL

SilverStone SX1000R-PL Platinum SFX-L Netzteil, Cybenetics Platinum, vollmodular, ATX 3.0 - 1000 Wat SST-SX1000R-PL

od 352,80 €
2 ponude
Stavi u listu želja
SilverStone napajanje Strider Plus ST55F-PB, 550 W

SilverStone napajanje Strider Plus ST55F-PB, 550 W

95,40 €
1 ponuda
Stavi u listu želja
SilverStone SST-SX500-LG v2.1 SFX-L Netzteil 80 PLUS Gold, modular - 500 Watt SST-SX500-LG v2.1

SilverStone SST-SX500-LG v2.1 SFX-L Netzteil 80 PLUS Gold, modular - 500 Watt SST-SX500-LG v2.1

131,40 €
1 ponuda
Stavi u listu želja
SilverStone SST-DA850R-GMA 80 PLUS Gold, modular, ATX 3.0 - 850 Watt SST-DA850R-GMA

SilverStone SST-DA850R-GMA 80 PLUS Gold, modular, ATX 3.0 - 850 Watt SST-DA850R-GMA

od 153,00 €
2 ponude
Stavi u listu želja
Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 2 - Brilliant White/Neon Blue/Pure Pink-COREPRO-EK-12VT2-BBP

Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 2 - Brilliant White/Neon Blue/Pure Pink-COREPRO-EK-12VT2-BBP

od 70,79 €
3 ponude
Stavi u listu želja
KOLINK COREADEPT-EK-BLE Core Adept produžni set plava

KOLINK COREADEPT-EK-BLE Core Adept produžni set plava

od 45,70 €
2 ponude
Stavi u listu želja
Kolink Core Standard Braided Cable Extension Kit - Brilliant White CORESTANDARD-EK-WHT

Kolink Core Standard Braided Cable Extension Kit - Brilliant White CORESTANDARD-EK-WHT

od 25,85 €
5 ponuda
Stavi u listu želja
SilverStone napajanje Strider Essential ST70F-, 700 W

SilverStone napajanje Strider Essential ST70F-, 700 W

od 81,70 €
2 ponude
Stavi u listu želja
SilverStone napajanje ST85F-PT, 850 W

SilverStone napajanje ST85F-PT, 850 W

od 213,30 €
2 ponude
Stavi u listu želja
SilverStone napajanje Strider Plus ST65F-PB, 650 W

SilverStone napajanje Strider Plus ST65F-PB, 650 W

121,60 €
1 ponuda
Stavi u listu želja
Kolink Core Adept Braided Cable Extension Kit - Rainbow CBKL1297

Kolink Core Adept Braided Cable Extension Kit - Rainbow CBKL1297

49,00 €
1 ponuda
Stavi u listu želja
KOLINK KOLINK Core 600W

KOLINK KOLINK Core 600W

od 46,80 €
3 ponude
Stavi u listu želja
SilverStone SST-SX450-B SFX Series - 450 Watt SST-SX450-B

SilverStone SST-SX450-B SFX Series - 450 Watt SST-SX450-B

od 91,80 €
2 ponude
Stavi u listu želja
SilverStone napajanje ST45SF, 450 W

SilverStone napajanje ST45SF, 450 W

od 98,10 €
2 ponude
Stavi u listu želja
SilverStone SST-FX350-G Flex Series 80 PLUS Gold - 350 Watt SST-FX350-G

SilverStone SST-FX350-G Flex Series 80 PLUS Gold - 350 Watt SST-FX350-G

od 98,10 €
3 ponude
Stavi u listu želja
SilverStone napajanje 600 W, 120mm, aktivni PFC

SilverStone napajanje 600 W, 120mm, aktivni PFC

od 55,69 €
2 ponude
Stavi u listu želja
Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 2 - Jet Black/Brilliant White-COREPRO-EK-12VT2-BWH

Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 2 - Jet Black/Brilliant White-COREPRO-EK-12VT2-BWH

od 71,03 €
3 ponude
Stavi u listu želja
Kolink Regulator modulares SATA-Kabel KL-CBR-SAT

Kolink Regulator modulares SATA-Kabel KL-CBR-SAT

od 5,49 €
2 ponude
Stavi u listu želja
SilverStone napajanje Strider Essential ST40F-, 400 W

SilverStone napajanje Strider Essential ST40F-, 400 W

od 50,40 €
2 ponude
Stavi u listu želja
Kolink Core Adept Braided Cable Extension Kit - Brilliant White/Neon Blue/Pure Pink CBKL1300

Kolink Core Adept Braided Cable Extension Kit - Brilliant White/Neon Blue/Pure Pink CBKL1300

49,00 €
1 ponuda
Stavi u listu želja
SilverStone napajanje Strider ST1100-TI, 1100 W, aktivni PFC

SilverStone napajanje Strider ST1100-TI, 1100 W, aktivni PFC

379,80 €
1 ponuda
Stavi u listu želja
KOLINK COREADEPT-EK-RBW Core Adept produžni set Rainbow

KOLINK COREADEPT-EK-RBW Core Adept produžni set Rainbow

49,50 €
1 ponuda
Stavi u listu želja
KOLINK COREADEPT-EK-BGM Core Adept produžni set fekete-gunmetal

KOLINK COREADEPT-EK-BGM Core Adept produžni set fekete-gunmetal

od 45,73 €
2 ponude
Stavi u listu želja
KOLINK Regulator 1200W PCIe5

KOLINK Regulator 1200W PCIe5

od 157,38 €
3 ponude
Stavi u listu želja
Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 2 - Venom Green-COREPRO-EK-12VT2-GRN

Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 2 - Venom Green-COREPRO-EK-12VT2-GRN

od 70,79 €
3 ponude
Stavi u listu želja
Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 2 - Jet Black/Gunmetal Grey-COREPRO-EK-12VT2-BGM

Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 2 - Jet Black/Gunmetal Grey-COREPRO-EK-12VT2-BGM

od 70,79 €
3 ponude
Stavi u listu želja
KOLINK COREADEPT-EK-BRD Core Adept produžni set crna i crvena

KOLINK COREADEPT-EK-BRD Core Adept produžni set crna i crvena

od 35,20 €
2 ponude
Stavi u listu želja
Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 1 - Jet Black/Gunmetal Grey-COREPRO-EK-12VT1-BGM

Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 1 - Jet Black/Gunmetal Grey-COREPRO-EK-12VT1-BGM

od 70,79 €
3 ponude
Stavi u listu želja
Kolink Core Adept Braided Cable Extension Kit - Plavi CBKL1279

Kolink Core Adept Braided Cable Extension Kit - Plavi CBKL1279

49,00 €
1 ponuda
Stavi u listu želja
Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 1 - Venom Green-COREPRO-EK-12VT1-GRN

Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 1 - Venom Green-COREPRO-EK-12VT1-GRN

od 70,79 €
3 ponude
Stavi u listu želja
Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 2 - Jet Black-COREPRO-EK-12VT2-BLK

Kolink Core Pro Braided Cable Extension Kit 12V-2x6 Type 2 - Jet Black-COREPRO-EK-12VT2-BLK

od 71,49 €
3 ponude
Stavi u listu želja
SilverStone 24-Pin-ATX auf 24-Pin-ATX - 300mm schwarz SST-PP07-MBB

SilverStone 24-Pin-ATX auf 24-Pin-ATX - 300mm schwarz SST-PP07-MBB

od 18,00 €
2 ponude
Stavi u listu želja
SilverStone napajanje 1650 W, aktivni PFC

SilverStone napajanje 1650 W, aktivni PFC

od 428,40 €
2 ponude
Stavi u listu želja
SilverStone SST-SX800-LTI v1.2 80 PLUS Titanium, modular - 800 Watt SST-SX800-LTI v1.2

SilverStone SST-SX800-LTI v1.2 80 PLUS Titanium, modular - 800 Watt SST-SX800-LTI v1.2

248,40 €
1 ponuda
Stavi u listu želja
Kolink Core Standard Braided Cable Extension Kit - Jet Black/Racing Red CBKL1422

Kolink Core Standard Braided Cable Extension Kit - Jet Black/Racing Red CBKL1422

29,00 €
1 ponuda
Stavi u listu želja
Kolink Core Adept Braided Cable Extension Kit - Bijeli CBKL1287

Kolink Core Adept Braided Cable Extension Kit - Bijeli CBKL1287

49,00 €
1 ponuda
Stavi u listu želja
KOLINK COREADEPT-EK-GRY Core Adept produžni set sivo

KOLINK COREADEPT-EK-GRY Core Adept produžni set sivo

od 37,15 €
2 ponude
Stavi u listu želja
KOLINK COREADEPT-EK-BLK Core Adept produžni set crno

KOLINK COREADEPT-EK-BLK Core Adept produžni set crno

od 41,54 €
2 ponude
Stavi u listu želja
KOLINK COREADEPT-EK-GMT Core Adept produžni set gunmetal

KOLINK COREADEPT-EK-GMT Core Adept produžni set gunmetal

od 34,00 €
2 ponude
Stavi u listu želja
Proizvođač
Adata (1) LC Power (73) AeroCool (7) Lenovo (3) Akasa (4) Lian Li (16) Akyga (23) Max Mobile (3) Alphacool (1) MaxLink (1) Antec (28) Microsoft (2) APC (44) Mikrotik (6) Apple (1) Montech (3) Aruba (1) Mq (1) Asus (87) MS (12) SilverStone (74) Kolink (71)
Napajanje
100 W - 300 W (1)
100 W (0)
110 W (0)
120 W (1)
130 W (0)
135 W (0)
150 W (0)
160 W (0)
200 W (0)
210 W (0)
240 W (0)
250 W (0)
300 W (0)
350 W - 540 W (16)
350 W (1)
360 W (0)
400 W (1)
420 W (0)
450 W (2)
460 W (0)
480 W (0)
500 W (12)
520 W (0)
530 W (0)
540 W (0)
550 W - 800 W (40)
550 W (6)
560 W (0)
600 W (5)
620 W (0)
630 W (0)
650 W (10) 700 W (11)
720 W (0)
730 W (0)
750 W (6)
760 W (0)
800 W (2)
850 W - 1250 W (19)
850 W (8)
860 W (0)
865 W (0)
900 W (0)
930 W (0)
950 W (0)
1000 W (4)
1050 W (0)
1100 W (1) 1200 W (6)
1250 W (0)
1260 W - bez napajanja (3)
1260 W (0)
1300 W (1)
1350 W (0)
1500 W (1)
1550 W (0)
1600 W (0)
1650 W (1)
1700 W (0)
1800 W (0)
bez napajanja (0)
Nema podatka (66)
Power factor correction
aktivni PFC (24) Nema podatka (121)
pasivni PFC (0)
Moglo bi te zanimati i
3 osnovne stvari za znati prije kupovine napajanja za PC