Buy ‘interface’ with Bitcoin Crypto-Currency – Spendabit

GamepadBlock - Joystick & Controller Interface

$34.95 at The Pi Hut

Adafruit 16-Channel 12-bit PWM/Servo Shield - I2C interface

$20.61 at The Pi Hut

Adafruit 24-Channel 12-bit PWM LED Driver - SPI Interface (TLC5947)

$17.96 at The Pi Hut

Adafruit 12-Channel 16-bit PWM LED Driver - SPI Interface (TLC59711)

$8.68 at The Pi Hut

SolarEdge StorEdge BI-EUSGN-01 > Backup Interface for Energy Hub HD-Wave Inverter with 200A Main Breaker

$1,705 at EcoDirect

Dtv+ Digital Interface

$1,173 at Overstock.com

RAAL-requisite TI-1a | Amp Interface for True-Ribbon Headphones

$750 at Bloom Audio

ELO E351600 2202L 22-Inch Wide Lcd Desktop, Full Hd, Projected Capacitive 10-Touch, Usb Controller, Clear, Zero-Bezel, Vga And Hdmi Video Interface, Black, Worldwide

Logic Controls LE1017-J Monitor, Black, 17 Inch Resistive Touch Screen, Usb Interface

Kohler DTV Prompt Three Outlet Digital Interface

$379 at Overstock.com

Honeywell CCB05-100BT-07N-N Charge/Communication Base for Granit 1981i, Class 1 Bluetooth, RS232/USB/KBW Host Interfaces (Cable Sold Separately)

APC BR1500MS2 1500 VA 900W Back UPS PRO BR, SineWave, 2 USB Charging Ports, AVR, LCD interface

Tripp Lite DisplayPort USB Server Interface w/Virtual Media & CAC B064 KVMs

SCU-17 USB Interface for Yaesu radios

MSI IMMERSE GV60 Streaming MIC 'USB Type-C Interface and 3.5mm Aux, for Professional Applications with Intuituve Control in 4 Modes: Stereo, Omnidirectional, Cardioid and Bidirectional

IFBD+HE08 Ethernet Interface

USB MIDI to RTP MIDI Network interface

$110 at Domoshop.eu

POSIFLEX CR3117L005 USB interface Drawer.15.7" (W) x 16.3" (D) x 3.5" (H)

$94.99 at Newegg

GIGABYTE A520I AC mITX AM4 Direct 6 Phases Digital PWM with 55A DrMOS, GIGABYTE Gaming GbE LAN, Intel WiFi+Bluetooth, NVMe PCIe 3.0 x4 M.2, 3 Display Interfaces, Q-Flash Plus, Motherboard

Loomia Double Backlit User Interface

$74.95 at RoboSavvy

Black Box PI125A-R2 Async RS-232 to Parallel Converter - DB25 to DB25, Interface-Powered

$99.99 at Newegg

USB to 3 MIDI in/out interface

$84.10 at Domoshop.eu

Socket Mobile Scan Charge Dock - Docking - RFID Reader, Bar Code Scanner - Charging Capability - Proprietary Interface - Black

$54.99 at Newegg

Plantronics Cable Tele 86007-01 Interface Cable

$49.00 at Newegg

Antelope - 'Orion Studio Synergy Core' Thunderbolt 3 & USB Interface

$2,950 at Scan Computers

StarTech U2M2E125 M.2 to U.2 Adapter - for 1 x M.2 NVMe SSD - U.2 (SFF-8639) Host Interface - SSD M.2 - NVME M.2 SSD - M.2 PCIe SSD - M.2 Drive

$33.99 at Newegg

NEW CHERRY JK-4500EU-2 ERGO KC 4500 Keyboard - Cable Connectivity USB Interface

$37.99 at Newegg

Apogee 16x16 Symphony I/O MKII Thunderbolt Audio Interface for Mac

$4,577 at Scan Computers

AVID - Pro Tools S3, Desktop User Interface

$4,917 at Scan Computers

Apogee SYM2-16X16S2 Symphony I/O MkII Thunderbolt Audio Interface

$5,119 at Scan Computers

Unirise USBC-DP-03F This Usb-C to Displayport Cable Allows You to Connect Your Usb Type C Interface

$16.99 at Newegg

RME Fireface UFX II USB Audio Interface

$2,536 at Scan Computers

Steinberg Cubase 12 Pro & AXR4U USB 3.0 Audio Interface

$2,714 at Scan Computers

StarTech M2E4SFF8643 U.2 to M.2 Adapter - for 1 x U.2 PCIe NVMe SSD - M.2 PCIe x4 Host Interface - U.2 SSD - M.2 PCIe Adapter - U.2 Drive

$22.99 at Newegg

Avid Pro Tools Carbon Audio Interface

$3,975 at Scan Computers

Antelope Orion 32+ Gen3 Audio Interface

$3,132 at Scan Computers

Adafruit 16-Channel 12-bit PWM/Servo Driver - I2C interface

$14.95 at Adafruit

HPE D3710 Drive Enclosure - 12Gb/s SAS Host Interface - 2U Rack-mountable Q1J10A

$2.00 at Newegg

RME MADIFACE XT Audio Interface

$2,470 at Scan Computers

Steinberg - 'AXR4T' Thunderbolt 2 Audio Interface

$2,168 at Scan Computers

Antelope - 'Zen Tour Synergy Core' Desktop Audio Interface

$2,031 at Scan Computers

Allen and Heath Qu-Pac Digital Mixing Audio Interface

$1,974 at Scan Computers

Antelope - 'Zen Tour Synergy Core' Desktop Audio Interface + Edge Solo

$1,952 at Scan Computers

RME 802 FireFace Audio Interface - Firewire & USB

$1,808 at Scan Computers

(Open BOX) DPA 4560 Core Binaural Headset and D:vice Audio Interface

$1,751 at Scan Computers

MOTU AVB 16A ThunderBolt & USB Interface

$1,592 at Scan Computers

RME HDSPe MADI FX PCI-E Audio Interface Card

$1,561 at Scan Computers

Apogee Symphony Desktop Interface

$1,567 at Scan Computers

Dynacord - CMS 600-3 - USB-Audio Interface

$1,505 at Scan Computers

MOTU 112D Thunderbolt And USB Audio Interface

$1,493 at Scan Computers

RME HDSPe MADI PCI-E Audio Interface Card

$1,473 at Scan Computers

MOTU - '1248' AVB ThunderBolt & USB Audio Interface

$1,457 at Scan Computers

RME - Fireface UCX II 40-channel USB Interface

$1,445 at Scan Computers

Antelope Discrete 8 Microphone Preamp Interface With Premium FX Pack

$1,410 at Scan Computers

MOTU - '8pre-es' Thunderbolt Audio Interface

$1,359 at Scan Computers

Barcode Reader/Scanner Module - CCD Camera - USB Interface

$69.95 at Adafruit

Barcode Reader/Scanner Module - CCD Camera - PS/2 Interface

$69.95 at Adafruit

Dtv+ Digital Interface

$1,244 at Overstock.com

Arturia - 'AudioFuse Studio' Desktop Audio Interface

$1,204 at Scan Computers

(B-Stock) Presonus Quantum 4848 Thunderbolt Audio Interface

$1,193 at Scan Computers