Buy ‘add-on’ with Bitcoin Crypto-Currency – Spendabit

NETGEAR WiFi 6 Mesh Range Extender (EAX12) - Add up to 1,200 sq. ft. and 15+ Devices with AX1600 Dual-Band Wireless Signal Booster & Repeater (up to 1.6Gbps Speed), WPA3 Security, Smart Roaming

$79.99 at Newegg

ICY DOCK flexiDOCK U.2/U.3 PCIe 4.0 NVMe SSD Tray-less Enclosure for E

$109 at Scan Computers

Addon WiFi 6E/BT5.3 5400Mbps MU-MIMO Wireless PCIe Adapter Card

$44.07 at Scan Computers

AddOn MINIDP2DP12MM3 3ft M/M Displayport 1.2 Cable - Black

$19.30 at Newegg

AddOn

$50.99 at Newegg

Intel I350-T2 V2 2 Port Gigabit Ethernet Server/Workstation Adaptor PC

$66.77 at Scan Computers

Intel 4 Port Gigabit Copper Server/Workstation PCI Express Adaptor LP/

$93.46 at Scan Computers

StarTech.com 2-Port RS232 Serial PCIe x1 Adapter

$69.41 at Scan Computers

Ultra Compact USB to RS422/485 Serial Adaptor - Brainboxes US-320

$88.13 at Scan Computers

StarTech 7 Port PCI Express SuperSpeed USB 3.0 Adapter

$92.15 at Scan Computers

Dual Port Dell Intel PRO/1000 PT Gigabit Server Network Adapter Card O

$93.46 at Scan Computers

USB-C to Ethernet Adapter with 3-Port USB

$74.12 at Scan Computers

C2g Hdmi Pass Through Decorative Wall Plate - Black

$48.99 at Newegg

OMSI 2 Add-on Chicago Downtown [Online Game Code]

$19.99 at Newegg

Adafruit BNO055 + BMP280 BFF Add-On for QT Py

$39.00 at The Pi Hut

StarTech.com Dual M.2 PCIe SSD Adapter Card

$96.14 at Scan Computers

Ring Add on Chime Pro WiFi Extender (2021 Update)

$62.75 at Scan Computers

TP-LINK AX3000 Dual Band Wi-Fi 6 + Bluetooth 5.0 PCI-e Adapter

$53.43 at Scan Computers

AddOn 3M USB 2.0 A to USB 2.0 A Male to Female Cable Black USBEXTAA3MF

$14.99 at Newegg

Ionnic 899-911/5 Halogen Globe BI-Pin 12V 35W

$85.87 at Ozautoelectrics

Brainboxes Isolated Industrial USB-C to RS-232 Serial Adapter

$66.10 at Scan Computers

StarTech PEX1394B3 3 Port 2b 1a PCIe F/wire 800 PCIe Card

$86.81 at Scan Computers

Intel X520-DA2 2 Port 10GbE PCIe SFP Converged Server Network Card Nor

$93.47 at Scan Computers

iStarUSA DD-666-2U-M 2U PCIe x16 to PCIe x16 Riser Card Middle Position

$57.99 at Newegg

Dell® 407-BCBN Compatible TAA 10GBase-SR SFP+ Transceiver (MMF, 850nm, 300m, LC, DOM)

$71.99 at Newegg

ICY DOCK EZConvert M.2/U.2 to 2.5" SSD Converter Adapter

$56.09 at Scan Computers

Addon 7M Mpo (Female) To Mpo (Female) 12-Strand Aqua Om4 Crossover Fiber Ofnr (Riser-Rated) Patch Cable ADD-MPOMPO-7M5OM4

$75.00 at Newegg

Panduit SmartZone Standard Dual-Locking Power Cord - Power IEC 320 EN 60320 C20 - Male Left Gender - Power IEC 320 EN 60320 C19 - Female Right Gender - 8feet - Blue - 10 pack (LPCB09-X)

$50.00 at Newegg

Ultra Compact USB to RS232 Serial Adaptor

$66.10 at Scan Computers

StarTech.com 7-Port USB 3.0 Hub

$99.48 at Scan Computers

Intel I226-T1 PCIe Single Port 2.5GbE RJ45 Network Adapter Low Profile

$53.40 at Scan Computers

Adafruit LiIon or LiPoly Charger BFF Add-On for QT Py

$5.95 at Adafruit

tp-link TXE75E Wi-Fi 6 Bluetooth 5.3 PCI Express Adapter

$60.09 at Scan Computers

AddOn 7ft RJ-45 Male to RJ-45 Male Straight Red Cat6A UTP PVC Copper Patch Cable ADD7FCAT6ARD

$17.99 at Newegg

Adafruit NeoPixel Driver BFF Add-On for QT Py and Xiao

$3.95 at Adafruit

tp-link Archer TBE400E BE6500 WiFi 7 / BT MU-MIMO Tri Band PCI-E Adapt

$66.77 at Scan Computers

USB to Serial RS232 Brainboxes US-101

$58.75 at Scan Computers

Adafruit Mini PiTFT - 135x240 Color TFT Add-on for Raspberry Pi

$9.95 at Adafruit

RS422/485 6ft USB Serial Cable Adapter

$80.80 at Scan Computers

ASUS HYPER M.2 PCIe x16 Gen 4 NVMe Card with 4x M.2 Slots

$69.43 at Scan Computers

4 Port PCIe USB 3.0 Expansion Card from StarTech.com

$56.09 at Scan Computers

Mattel UNO Swap Pack Add-On Card Game

$17.99 at Newegg

MSI HERALD BE9400 Wi-Fi 7 / Bluetooth Tri-Band PCIe Expansion Card, Hi

$80.13 at Scan Computers

AddOn 6m LC (Male) to LC (Male) Orange OM2 Duplex Fiber OFNR (Riser-Rated) Patch Cable

$23.99 at Newegg

Adafruit FeatherWing OLED - 128x64 OLED Add-on for Feather - STEMMA QT / Qwiic

$14.95 at Adafruit

StarTech USB3 to Dual Port Gigabit Ethernet Adapter

$79.45 at Scan Computers

AddOn 30ft Yellow CAT 6A Slim PVC Ethernet Cable Snagless Clear-Claw RJ-45 M/M

$26.99 at Newegg

AddOn HP 1P3K6UT#ABA Compatible 65W 20V at 3.25A USB-C Laptop Power Adapter and Cable - 65 W - 20 V DC Output - 3.25 A - Black - 1

$14.51 at Newegg

ASUS Tri-Band WiFi 6E/BT 5.2 AXE5400 MU-MIMO Wireless PCIe Add-In Card

$40.06 at Scan Computers

Brainbox USB to Serial 1 x RS422/485

$73.44 at Scan Computers

AddOn HP H6Y89UTABA Compatible 65W 19.5V at 3.33A Black 4.5 mm x 3.0 mm Laptop Power Adapter and Cable with 7.4mm x 5.0mm tip adapter - 65 W - 19.5 V DC Output - 3.33 A - Black - 1

$61.99 at Newegg

AddOn 2m LC to LC Red OM2 Duplex OFNP Plenum-Rated Fiber Patch Cable

$23.99 at Newegg

StarTech.com USB 3.0 to Gigabit NIC Network Adapter

$34.05 at Scan Computers

Hella X0207 ACCESSORY KIT, PARKING BRAKE SHOES 8DZ 355.202-071

$39.32 at Ozautoelectrics

USB to RS-232 adapter cable with COM Retention from StarTech.com

$34.72 at Scan Computers

Solana Add-on

$33.42 at CryptoWoo

Ionnic 9806103/10 Hinged Fitting T-Piece Hook Up (Pack of 10)

$35.82 at Ozautoelectrics

AddOn 1ft Purple CAT 6A PVC Ethernet Cable Snagless Bubble Boot RJ-45 M/M

$14.99 at Newegg

Brainboxes 2 Port USB-C to RS-232 Serial Adapter

$58.76 at Scan Computers

Intel 1 Port PCI-E Ethernet Gigabit Server Adapter I210-T1

$46.74 at Scan Computers