Strip and inspect
The computer is disassembled down to the frame so the thermal path, ports, contacts, wiring, and board condition can be checked thoroughly.
Intel's renowned Kaby Lake i7 processor / Bitcoin-ready refurbished hardware
NodeBlaster™
Blocks don't stand a chance.
Solo Mining Node
A professionally rebuilt Intel NUC powered by Intel's renowned Kaby Lake i7 processor, stripped down to the frame, thermally renewed, cleaned, BIOS updated, tested, and prepared for serious Bitcoin node and mining operations. You can count on your NodeBlaster for reliable 24/7 operation. It's not overkill. It's application specific horsepower.
Reassembled in the USA.
90 days parts and labor
30 days live online support
Umbrel Linux OS
Arctic® thermal system
BTC
NUC
NVMe
Fast NVMe
Intel i7
Newest BIOS
DDR4 RAM
Premium thermals
NodeBlaster Core
Fast NVMe
Intel i7
Newest BIOS
DDR4 RAM
Premium thermals
58 Cthermal target
1,312,947accepted checks
Cleanports + contacts
The product
A lean, mean, mining machine. Not a dusty used mini PC.
You do not need to spend thousands on a new computer with the latest specs. Whether you run a Bitaxe, Nerdaxe, NerdQAxe, NerdOctaxe, or another home ASIC miner, the hardware does the hashing; what it needs beside it is a reliable, low-latency crypto mining node designed for BTC, BCH, and DGB operations around the clock. And as any Bitcoin miner knows, cooling is a priority.
Every NodeBlaster starts as an Intel NUC with the renowned Kaby Lake i7 processor and gets rebuilt for low-latency, dependable operation: fresh cooling, fresh thermal interface materials, cleaned contacts, tested memory, and high-speed M.2 NVMe storage. A custom auxiliary cooling fan is mounted over the M.2 drive to help keep storage temperatures stable during heavy mining operations. Because the base hardware is previously owned, units may show the usual nicks, scratches, and scuffs from normal wear and tear.
Fan mod photo coming
Frame-up refurbishment
The rebuild sequence
Renew the cooling
CMOS battery and CPU cooling fan are replaced, then the heat sink is pulled for a full paste and pad refresh.
Arctic® interface
Old thermal paste and pads are removed and replaced with top-quality Arctic® thermal paste and thermal pads.
Test and load
M.2 NVMe storage and RAM are installed and tested so each unit is ready for extreme low-latency operations.
Intel NUC7i7BNH
Technical specifications
The NodeBlaster is built on the Intel NUC7i7BNH platform and then configured around the Linux Umbrel operating system and your coin/node selection. Memory and drive capacity are finalized per build, with full-node combinations receiving the largest storage profiles.
Base platformIntel NUC Kit NUC7i7BNH
ProcessorIntel Core i7-7567U
CPU architecture7th Gen Kaby Lake, 14 nm
Cores / threads2 cores / 4 threads
CPU frequency3.50 GHz base / up to 4.00 GHz turbo
CPU cache / TDP4 MB cache / 28 W TDP
GraphicsIntel Iris Plus Graphics 650
MemoryDDR4-2133 SODIMM, size TBD by configuration
Memory ceilingUp to 32 GB, dual-channel capable
Primary storageM.2 NVMe SSD, capacity TBD by node build
Storage expansionM.2 2280 + MicroSD Card Slot
NetworkGigabit Ethernet, Wi-Fi 802.11ac, Bluetooth 4.2
Display / expansionHDMI 2.0 + Thunderbolt 3 / USB-C
USBFour USB 3.0 ports plus USB-C expansion
Operating systemLinux Umbrel, mining-server tuned
RefurbishmentComplete teardown. New CMOS battery, new CPU cooling fan, Arctic® paste and pads, all contacts and ports cleaned, M.2 cooling mod installed, new BIOS flashed, OS install and fine-tuning.
Linux Umbrel onboard
A tuned mining-server OS, ready for your network.
The NodeBlaster features the Linux Umbrel operating system, fine-tuned for mining server operations. Configured blockchains are synchronized before shipping, so your system can be ready to mine minutes after startup instead of waiting days for the initial sync. Setup is easy as 1, 2, 3.
Connect Ethernet
Connect directly to your network for a steady server connection.
Reserve the IP
Give your new Umbrel server a predictable address on your router.
Add payment addresses
Enter the payout address in the settings for BTC, BCH, and DGB as configured.
Node field notes
Your node is the part of Bitcoin that does not ask permission.
A Bitcoin node checks blocks, rejects invalid transactions, and keeps its own copy of the rules. NodeBlaster turns that job into a dedicated box: wired Ethernet, tuned Umbrel, tested storage, and a build profile that matches how much chain history you want to keep.
Your miner is only as good as your node. Take control.
Read the full node guideVerify, then trust yourself
A node independently checks the chain instead of leaning on a third-party server to tell you what is valid.
Choose your storage depth
Pruned builds keep recent validated data lean. Full-node builds preserve the deepest history and need larger NVMe capacity.
Strength in distribution
Every independent node adds another route around censorship, downtime, and centralized choke points.
Low-latency mining edge
A slow share can turn a winning moment into a rejected one.
Latency is the delay between your miner submitting work and the pool receiving and validating it. When that delay climbs, shares can go stale, accepted work can drop, and effective hashrate can fall even while your gear is still burning power.
Adapted from low-latency mining pool guidance by Sazmining.
Distance steals time
A far-away or poorly routed pool connection can turn small delays into rejected shares. Over enough submissions, those little misses stop feeling little.
High latency lowers real output
If fewer shares are recorded by the pool, your effective hashrate drops. During congestion, the penalty gets sharper because timing matters most when everyone is racing.
Keep the mining path tight
A dedicated wired node box gives your setup a cleaner, always-on command point for pool selection, monitoring, and fast validation workflows.
Configure your build
Choose your weapon. NodeBlaster has your back.
Each NodeBlaster includes 90 days parts and labor warranty, 30 days of live online support, and full year of free NodeBlaster system updates. Bitcoin Core with Public-Pool is the foundation; add BCH or DigiByte support, then choose pruned or full node depth. Pruned vs full Pruned keeps the node lean by storing only recent validated blockchain data. Full keeps the full chain history, needs the 2 TB M.2 NVMe build, and costs more because it carries the larger archive. Neither setup has a performance advantage; choose what you can afford.
Build inquiry
Ready to put a dedicated node machine on your network?
Tell us what you want to run, how much chain history you need, and whether this is for a solo node, mining workflow, or low-latency pool setup.