Top 2 Layers Pcb Reviews

DollaTek StepStick 4-Layer DRV8825 Stepper Motor Driver Module for 3D Printer Reprap RP A4988

Simple step and direction control interface.
It can directly interface with 3.3V and 5V systems.
Thermal shutdown overtemperature, shutdown overcurrent, and under-voltage lockout.
4 layers, 2 oz copper PCB for better heat dissipation.

【Dimension】 -Size：200mmx150mm/7.87"x5.91"(L*W).
【Material】 -The copper clad laminate is made of FR-4 glass fiber and copper, the number of layers issingle-sided.
【Features】- The copper clad board is resistant to high temperature, is not easily oxidized, is not easily deformed, and is convenient for welding.
【Application】 - PCB circuit boards are very suitable for making PCB circuit boards and models. It is widely used in product development, DIY experiment, maintenance, production, etc.
【Noted】 -The product may be slightly scratched or dirty during transportation, which will not affect its use.

Prototype Screw/Terminal Block Shield Board Kit For Arduino MEGA-2560 R3..
FR-4 fiber glass PCB, dual copper layers, size 120mm x 78mm..
Pads grid / pitch 2.54mm / 0.1", hole diameter 0.8mm. Terminal block pitch 3.5mm / 0.138", hole diameter 1.2mm..
Pitch 3.5mm / 0.138" mini terminal blocks, total 84 pins(3pole x24pcs, 2pole x6pcs )..

These PCB boards are great for assembly of a point to point style electronics board. Suitable for countless small electronics projects such as building a robot. If you are working with hobby electronics and want a more permanent circuit solution but don't want to design your own PCB, these are great for you!.
The prototyping boards we provide here are in the size of: Dimension: 80mm x 120mm / 3.15 x 4.72 inch (W*L).
They are made of FR-4 glass fiber, double sided with tinned through holes. This is a fast easy way to build small projects, the boards are durable and the tinned holes can take heat without lifting off..
Easy to cut with a rotary tool. The pre-drilled holes in each corner are great for building with two layers..
Please read the measurements before ordering if you are concerned about the size..

These PCB boards are great for assembly of a point to point style electronics board. Suitable for countless small electronics projects such as building a robot. If you are working with hobby electronics and want a more permanent circuit solution but don't want to design your own PCB, these are great for you!.
The prototyping boards we provide here are in the size of: Dimension: 20mm x 80mm / 0.79 x 3.15 inch (W*L).
They are made of FR-4 glass fiber, double sided with tinned through holes. This is a fast easy way to build small projects, the boards are durable and the tinned holes can take heat without lifting off..
Easy to cut with a rotary tool. The pre-drilled holes in each corner are great for building with two layers..
Please read the measurements before ordering if you are concerned about the size..

Supports New Intel Core i7 Processor Extreme Edition, Support for DDR4 XMP up to 3333MHz.
4-Way Graphics with Premium PCIe Lane, Dual M.2 Technology for SSD Drive and WIFI card.
Independent Right and Left Audio Channel PCB Layers, High end Nichicon audio capacitors.
SATA Express support for up to 10 Gb/s data transfer.
Thunderbolt Ready, Safer design around screw mounting holes.

The item has been soldered and assembled. Support for Raspberry Pi 1 Model B+, Pi 2 Model B, Pi 3 Model B, Pi 3 Model B+, Pi 4 Model B, Pi Zero, Pi Zero-W..
Terminal block pitch 2.54mm/0.1", wire size range 28AWG to 18AWG, strip length 4.5mm, screw M1.6 steel, pin header and cage copper..
FR-4 fiber glass PCB, dual copper layers..
2x20 positions header connect to Raspberry Pi board..
Packing list: 1x terminal block breakout module, 4x M2.5x6mm screws, 4x 10mm nylon standoffs. 2x 11.5mm brass standoffs, 1x small slotted screwdriver (NOTE: the item not include Raspberry Pi Board)..

2 DPDT signal relay module. TAKAMISAWA RY5W-K high quality relays, switch contact material - gold overlay silver-palladium..
Darlington transistor circuits drive relay coil, LED indicator for each relay channel..
FR-4 fiber glass PCB, dual copper layers..
Datasheet: https://images-na.ssl-images-amazon.com/images/I/91SnxaAOOnL.pdf.

Designed exclusively for 8th generation Intel Core processors to maximize connectivity and speed with an integrated M.2 slot.
5x Protection III Hardware-level safeguards provide component longevity and reliability.
Fan pert delivers advanced fan controls for dynamic cooling.
Asus optimized improves memory stability and performance by improving trace isolation between PCB layers to maintain signal integrity even at higher frequencies.

Support AC and DC control signal, Relay action LED indicator, relay coil protection by means of a freewheeling diode..
Panasonic PA1a SPST-NO 5Amp power relay. Original Panasonic PA1a-PS pluggable socket for support replacement relay, and with removal key..
Dinkle high quality fireproof nylon material DIN rail mount housing, can support width 35mm, 32mm and 15mm rail..
High quality screw terminal blocks and clear marking label for terminal block position. Pitch 5.08mm/0.2" and 7.62mm/0.3" screw terminal block. Wire range 26 to 12AWG / 2.5mm square. Screws - M2.5, steel, Cr3+ Zn plated. Pin header and Cage - Brass..
High quality glass fiber FR-4 PCB, top and bottom dual copper layers..

Designed exclusively for 9th generation Intel Core processors to maximize connectivity and speed with an integrated M.2 slot with Intel Optane Memory compatibility.
5x Protection III Hardware-level safeguards provide component longevity and reliability.
Fanxpert delivers advanced fan controls for dynamic cooling.
ASUS Optic-MEM improves memory stability and performance by improving trace isolation between PCB layers to maintain signal integrity even at higher frequencies.
On-board 8-channel HD audio provides warm, immersive crystal-clear surround sound.

The PCI-E expansion riser card adapter is designed to convert 1 PCI-E 1X slot into 4 PCI-E 16X slots. The 4 PCI-E 16X slots could connect sound card,....
imultaneously support 4 PCI-E 16X devices, non-interference. Customized for mining BTC. 2 layers PCB board design. Compliant with PCI express 2.0 &....

Consists of 20 static colors, 8 dynamic modes and 6 DIY colors.
Consists of individual 5050 LED emitters on 2 rolls of 25ft led strips.
Double side sticky adhesive allows for quick and easy installation in a wide variety of locations.
Safe to touch under 12 volt working voltage.
double copper layers on pcb board makes the lights stronger.