When it comes to mining, the issues behind the scenes have never stopped—"Can I still enter the market now?" "How should beginners choose equipment?" Most newcomers focus on the latest devices but overlook the older models that have stood the test of the market. Today, let's talk about a heavily underestimated miner: the Antminer Z15 Pro.

This is not hype, just facts backed by data. This device, released in 2023, was almost forgotten due to the bearish ZEC market at the time. But by 2025, ZEC's price surged over 1500%, bringing it back into the spotlight. Is it worth paying attention now? You'll understand after seeing this data.

First, let's talk about hash rate. 840 KSol/s may not be top-tier in the entire network, but the key is your share of the total network. Currently, ZEC's total network hash rate is only 13.67 GSol/s, which is relatively small. Simple calculation: 840 KSol/s ÷ 13.67 GSol/s ≈ 0.61%, meaning this machine can earn about 0.61% of the block rewards.

Next, look at block data. ZEC's block reward is 1.5625 coins, with an average block time of 75 seconds. Based on this, a Z15 Pro can produce approximately 0.11 ZEC per day steadily. At current market prices, this yield is enough to cover basic operational costs.

What is the core point? Don't just focus on hash rate rankings; instead, consider the device's compatibility with the current coin. ZEC's network hash rate is relatively small, which actually creates better mining opportunities for machines with moderate hash rates. Many make the mistake of blindly chasing new equipment while ignoring the value of older devices for specific coins. This is why many experienced miners quietly deploy these overlooked older models.