Required dehumidifier capacity starts at floor area in pyeong times 0.76 L for apartments. Rated extraction is measured at 27C and 60% relative humidity over 24 hours, so a unit rated at 30C and 80% drops to roughly 70% under Korean conditions.
Qi2 25W is the brand name for Qi v2.2.1, lifting the ceiling from 15W to 25W. But that number only appears when the charger, wall adapter, case and phone all line up.
A USB-C cable rated for 240W can still cap out at 480Mbps for data. Power ratings and data ratings are separate specifications carried by separate wires. Here is how to read e-marker requirements, speed tiers and length limits.
Thunderbolt 5 guarantees an 80Gbps link and 64Gbps of PCIe through certification; USB4 only has to clear 20Gbps to meet spec. The headline 120Gbps is four lanes redistributed 3:1, not a faster pipe.
Bluetooth codecs move anywhere from 160kbps (LC3) to 990kbps (LDAC) — a sixfold spread. Measured against a 1,411kbps CD stream, SBC keeps 23% of the original and even LDAC's top mode keeps only 70%.
A 1/1.3-inch sensor actually measures 12.3mm diagonally with a 72.7mm² light-gathering area. Here is why the inch notation has nothing to do with inches, and what 200MP plus pixel binning really changes.
HDMI 2.1's 48Gbps shrinks to 42.6Gbps once encoding overhead is stripped out. Here is the bandwidth 4K 240Hz at 10-bit really demands, calculated line by line against every standard.
Wi-Fi 7 beats 6E through two multipliers: double the channel width and a 1.2x gain from 4K-QAM. Here is where the spec's 2.4x comes from, and why Korea's 1200MHz of 6GHz fits only three 320MHz channels.
CL counts clock cycles, not time. One division — (CL x 2000) / data rate — separates DDR5-4800 CL40 at 16.7 ns from DDR5-8000 CL38 at 9.5 ns, and explains why bigger numbers can be slower.
The 1ms on a spec sheet is almost always GtG, but what you actually see is governed by MPRT. At 240Hz, motion blur measures about 4.2 pixels. Here is the math behind both numbers.