This 4GB SDHC Memory Card Class 4 from Panasonic features a maximum read speed of 20MB/s and a minimum write speed of 4MB/s. It's compatible with devices that have SDHC and SDXC slots. This Class 4 card is a member of Panasonic's Proof 7 collection, meaning it can withstand water, shock, magnetic fields, X-rays, extreme temperatures and electrostatic forces, and also contains a safety fuse to protect against overheating.
- Proof 7 Protection
- The card is waterproof to a depth of 3.28' (1.0 m) for 30 min, as well as shockproof, with a minimum bending load resistance of 20 N and twisting torque resistance of 0.3 Nom. Additionally, it is protected against X-rays, being compliant with the ISO 7816-1 standard, meaning it's operable after 0.1 Gy of irradiation and can be safely exposed to carry-on baggage inspections. The card can also resist a 1000-gauss DC magnetic field for approx. 1 min, and is safeguarded against electrostatic forces: It's compliant with the ICE 61000-4-2 standard, meaning it has cleared Electrostatic Discharge Immunity Tests of 150-pF energy storage capacitance, 15-kV aerial discharge, and 330-ohm discharge resistance. A built-in safety fuse protects the card against excess current and heat