• 120MM silent fan design, long life, noiseless and fastest cooling time.
• High performance components are designed for extra long life and provide maximum system performance.
• Heavy duty transformers designed to support high performance system several drives.
• Cable-tube on main power cables for better cable routing and neatness & Colored fan (optional).
• Passive PFC: 0.7@230VAC; Active PFC: 0.95 min. (option).
• With +5VSB: 0~2.5A Max.
• AC input 100~120VAC or 100~240VAC(for Active/PPFC models option).
• Frequency 47~63Hz.
• Built in EMI filter, low ripple noise.
• Over voltage, Over power and Short circuit protection.
• Efficiency>65% at full load, >95% at APFC, >90% at PPFC.
• Meet FCC part 15 Class B,CISPR 22 Class B and Intel ATX12V/ATX 2.03.
• Designed refer to UL, CSA, TUV regulations.
• Compatible with all leading processors including Pentium III, 4 and AMD Athlon XP.
• Active or Passive PFC function (optional).

• Model: CX-550B.
• Type: ATX v2.01.
• Maximum Power: 550W.
• Fans: 1.
• Dual +12V: Yes.
• Power Good Signal: 100-500ms.
• Efficiency: > = 65%.
• Over Voltage Protection: Yes.
• Overload Protection: Yes.
• Input Voltage: 115/230 V.
• Input Frequency Range: 50/60 Hz.
• Input Current: 12A @ 115AC, 6A @ 230AC.
• Output: +3.3V@30A, +5V@50A, +12V1@18A, +12V2@18A, -12V@1A, +5VSB@2.5A.
• Connectors:
  - 1 x Main connector (20+4 pin).
  - 1 x 12V (P4).
  - 6 x peripheral.
  - 2 x SATA.
  - 2 x Floppy.
• Unit Dimensions: 140Lx150Wx85H (mm).

$20 End-User Mail-In Rebate: CoolMax is now presenting a mail-In rebate for 550W ATX 12V v2.01 Computer Power Supply CX-550B. Promotion begins 07/01/09 and ends on 07/31/09. This promotion cannot be combined with any other promotion. Claim your rebate through the rebate form and follow mailing instructions. Note, incomplete forms will be denied as well as forms mailed too late. Manufacturer is not responsible for lost or misdirected mail. The promotion is not retroactive. Click here to download the rebate form.