| Distributor | SKU | Stock | Cost | |
|---|---|---|---|---|
| DigiKey | X1044-ND | 879 | $0.49 | Buy |
| DigiKey | X1044-ND | 879 | $0.61 | Buy |
| Mouser Electronics | 520-HCU400-SX | 1460 | $0.54 | Buy |
| Farnell | ECS-40-S-4X | * $0.31 | Buy | |
| Arrow North American Components | ECS-40-S-4X | 38 | $0.69 | Buy |
| AVNET Express | ECS-40-S-4X | $0.33 | Buy | |
| Ameya360 | ECS-40-S-4X | $0.35 | Buy | |
| Verical Marketplace | ECS-40-S-4X | 38 | $0.52 | Buy |
Crystal 4MHz Series 2-Pin HC-49/U